Downsizing, Economy, International and Manufacturer

Ricardo to assist Lifan in development of 1.2L turbocharged DI gasoline engines for downsizing applications

Green Car Congress

MAY 31, 2011

Ricardo will assist Lifan Automobile Group based in Chongqing, China, with the development of a family of highly downsized gasoline engines capable of meeting future Chinese and international fuel economy and emissions regulations.

Downsizing

Downsizing Gasoline Engine Fuel Economy

Calls for an international 48V electrical standard for vehicles; looming WLTP implementation

Green Car Congress

DECEMBER 1, 2014

At the 2 nd International Conference Automotive 48 V Power Supply Systems , held last week in Düsseldorf, Germany, Controlled Power Technologies (CPT), a major sponsor of the event, together with leading car makers and Tier 1 suppliers, argued the need for an internationally agreed 48V electrical standard.

Standards

Standards International Vehicles Hybrid

GM to double models with 40 mpg highway or better by 2017; ongoing manufacturing efficiency improvements

Green Car Congress

JULY 12, 2013

Describing its product goals and tracking progress toward its 2020 manufacturing priorities in its 2012 Sustainability Report , General Motors reaffirmed its commitment to further reduce the energy used and the environmental impacts of building and operating an automobile. Manufacturing energy use and emissions. Earlier post.).

GM

GM MPG Manufacturer 2017

Eaton contributing several components to DOE SuperTruck II program

Green Car Congress

MARCH 19, 2019

Eaton announced it is contributing several components to truck manufacturers participating in the U.S. Eaton is supplying a number of leading-edge technologies that improve fuel economy and reduce emissions to Original Equipment Manufacturer (OEM) teams. Department of Energy’s (DOE) SuperTruck II program. Earlier post.).

Eaton

Eaton Fuel Economy Exhaust Economy

Ford to bring 20 new engines and transmissions to China and improve fleet fuel economy by more than 20% by 2015; producing the new 1.0L EcoBoost in China

Green Car Congress

NOVEMBER 21, 2011

Utilizing technologies such as turbocharging, direct injection, twin independent variable camshaft timing (Ti-VCT) and six-speed transmissions, the upgraded powertrain portfolio will deliver more than 20% in fuel economy improvement to Ford’s passenger vehicle fleet in China by 2015 while reducing tailpipe carbon dioxide emissions by 20%.

Fuel Economy

Fuel Economy China Economy 2015

EPA official: the future of the internal combustion engine is bright and clear

Green Car Congress

OCTOBER 5, 2011

” Bunker spent the bulk of his presentation describing the new medium- and heavy-duty fuel economy and greenhouse gas regulations from EPA and the Department of Transportation. The future that we point to [is] very conventional-looking engines.” Earlier post.) should not discount novel engine designs. —Byron Bunker.

International

International Future Engine EPA

New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

Green Car Congress

MAY 16, 2019

Reducing the number of exhaust gas particulates, including those smaller than 23 nm, will help manufacturers meet increasingly stringent future global emissions standards. Delphi Technologies’ 500+ bar system can help vehicle manufacturers meet both challenges. Delphi 500+ bar GDi pump. Delphi 500+ bar GDi injector.

Emissions

Emissions Gasoline Fuel Exhaust

General Motors plans to be carbon-neutral by 2040; eliminate LDV tailpipe emissions by 2035

Green Car Congress

JANUARY 29, 2021

This investment includes the continued development of GM’s Ultium battery technology, updating facilities such as Factory ZERO in Michigan and Spring Hill Manufacturing in Tennessee to build electric vehicles from globally sourced parts and investing in new sites like Ultium Cells LLC in Ohio as well as manufacturing and STEM jobs.

General Motors

General Motors Carbon Emissions GM

Hyundai plans 12 new SUV models through 2021; ICE, hybrid, PHEV, BEV; 2022 Tucson

Green Car Congress

NOVEMBER 10, 2020

The fresh pipeline of new SUV products will include new and refined internal combustion, hybrid, plug-in, BEV and N performance models. The new 2022 Tucson internal combustion models will be produced at Hyundai Motor Manufacturing Alabama (HMMA) and Ulsan, Korea. 2022 Tucson. The new Tucson offers both a Smartstream 2.5-liter,

Tucson

Tucson Hyundai PHEV SUV

ICCT working paper highlights benefits of current and emerging light-duty diesel technology; “promising pathway for compliance”

Green Car Congress

JULY 11, 2017

The International Council on Clean Transportation (ICCT), one of the organizations at the root of uncovering the Volkswagen diesel emission scandal ( earlier post ), has published a new analysis of developments and trends in advanced diesel engine technology. real-world fuel economy, performance, drivability, reliability, and safety.

Diesel

Diesel Light Fuel Economy 2017

New powertrain line-up for Hyundai 2022 Tucson

Green Car Congress

APRIL 14, 2021

The new 2022 Tucson internal combustion models will be produced at Hyundai Motor Manufacturing Alabama (HMMA) and Ulsan, Korea. kWh of power, yielding an estimated all-electric range (AER) of 32 miles and estimated fuel economy of more than 70 MPGe. The new Smartstream 2.5-liter Plug-in Hybrid models feature a high-output 1.6-liter

Tucson

Tucson Hyundai Plug-in Gasoline-Electric

CPT developing 48-volt electric supercharger for micro-mild hybrids

Green Car Congress

SEPTEMBER 29, 2011

The higher-voltage variant will support moves by European vehicle manufacturers announced earlier this year to introduce 48 volt passenger vehicle power networks to help meet the requirement for lower fuel consumption and CO 2 emissions. —Guy Morris, CPT’s engineering director and chief technical officer.

Volt

Volt Hybrid Downsizing Lead Acid

Federal Mogul develops advanced aluminum piston for high-performance light-duty diesel engines

Green Car Congress

JUNE 19, 2012

internal friction. downsized diesel engines with improved fuel economy and CO 2 emissions. Federal-Mogul's 2D ultrasonic inspection technique enables high performance pistons for diesel downsizing. The piston’s raised gallery places the cooling oil as close to the piston bowl as possible to achieve maximum cooling.

Diesel

Diesel Light Engine Downsizing

Navigant Research forecasts plug-ins will be 2.4% of global new vehicle sales by 2023; luxury brands to represent about 50% of that

Green Car Congress

OCTOBER 23, 2014

Navigant expects sales of plug-in EVs from luxury manufacturers, such as Tesla, Mercedes, Audi, and BMW to grow strongly through 2018 before leveling off at around 50% of the plug-in EV market. Accordingly, Navigant expects this luxury brand push to increase global sales of plug-in EVs significantly in the near term.

Plug-in

Plug-in Plug Global Sale

Former Commerce and Transportation Secretary Norman Mineta urges technology neutral policies in reaching proposed CAFE standards

Green Car Congress

NOVEMBER 8, 2011

Current fuel economy policy clearly demonstrates this fact. Monetary incentives are being used to alter consumer and manufacturer decisions. —“The Case for Technology Neutral Public Policy in Fuel Economy Debate”. Impact of different sales mix on new car average fuel economy.

Standards

Standards Transportation Fuel Economy MPG

SwRI’s HEDGE Technology Eliminates Low-Speed Pre-Ignition in Highly Boosted Engines

Green Car Congress

JUNE 28, 2010

The presence of low-speed pre-ignition is considered a major impediment to automobile manufacturers’ efforts to aggressively downsize engines to reduce carbon dioxide emissions. This is a substantial development because it has the potential to affect every original equipment manufacturer (OEM).

Engine

Engine Fuel Economy Gasoline Emissions

EC rolls out CARS 2020 action plan for European auto industry

Green Car Congress

NOVEMBER 8, 2012

To meet long-term greenhouse gas emissions targets as well as air quality objectives, the internal combustion engine will be further improved, being accompanied by the development and progressive implementation of breakthrough technologies, such as electrified propulsion. A stronger internal market and smart regulation.

Auto Industry

Auto Industry 2020 Industrial Industry

Eaton Highlights Range of New Products to Reduce Fuel Consumption and Emissions

Green Car Congress

SEPTEMBER 24, 2010

The diversified manufacturer also said that in addition to boosting engine performance, its superchargers can provide up to a 5% fuel savings and reduce emissions compared to competing technologies. 136 kg], which translates into improved fuel economy and enhanced performance and safety for the end consumer. New Engine Valves.

Eaton

Eaton Emissions Fuel Range

Honeywell Transportation Systems Forecast: turbocharged vehicles to account for 48% of annual global sales by 2021; electric boosting emerges

Green Car Congress

DECEMBER 9, 2016

By rightsizing engines with available technologies, automakers are able to continue applying the benefits of smaller turbocharged engines while fine-tuning powertrain systems to further optimize fuel economy, emissions and performance. E-boosting products can significantly improve engine responsiveness and also provide better fuel economy.

Global

Global Sale Transportation Vehicles

Ford Unveils Next-Generation Global Focus at NAIAS; Features New 2.0L DI Engine with Powershift Dual-Clutch Transmission for NA Market

Green Car Congress

JANUARY 11, 2010

The next-generation Ford Focus 5-door hatchback, revealed at the 2010 North American International Auto Show. Ford unveiled its strategically important next-generation Ford Focus in both four-door sedan and five-door hatchback styles at the 2010 North American International Auto Show (NAIAS) in Detroit. Click to enlarge.

Ford

Ford Engine Global Market

UK government and industry to invest >$1.5B in Advanced Propulsion Centre (APC) for low carbon vehicles; technology roadmaps for 5 priority areas

Green Car Congress

JULY 12, 2013

It follows the recent plans for construction, aerospace and other key sectors to secure sustainable future growth in the economy. On average only a third of the parts that go into vehicles manufactured in the UK are sourced from the UK. Internal combustion engines. Most of the APC funding will be focused on projects. Technology.

Industrial

Industrial Industry Carbon Vehicles

Study finds technology cost of achieving European 2020 LDV CO2 targets more than offset by resultant fuel savings

Green Car Congress

MARCH 19, 2013

This first report (Phase I) examines only the impact of improving the efficiency of fossil-fueled vehicles, in which efficiency gains are delivered by the improvement of the internal combustion engine vehicle, including lightweighting, engine downsizing and hybridization.

Cost Of

Cost Of 2020 Fuel CO2

Ford Unveils Ford Fiesta for North America at Los Angeles Auto Show; 1.6L I4 with Ti-VCT Delivers Estimated 40 mpg Highway

Green Car Congress

DECEMBER 2, 2009

Fiesta—available in four- and five-door bodystyles—will offer North American buyers a new choice of 15 class-exclusive technologies and projected highway fuel economy of 40 mpg, besting the Honda Fit, Nissan Versa and Toyota Yaris and Corolla. Our fuel economy leader is now a PowerShift automatic. The Ford Fiesta’s 1.6-liter

Los Angeles

Los Angeles North America Ford MPG

National Research Council Study Finds That Available Technologies Can Result in Significant Fuel Savings for Passenger Vehicles Over the Next 15 Years, But at Higher Purchase Prices for Consumers

Green Car Congress

JUNE 4, 2010

Estimated price increases are based on current economic conditions and the concept of “incremental retail price equivalent (RPE) cost,” which represents the average additional price consumers would pay for a fuel economy technology. For example, the report notes the promise of cylinder deactivation, turbocharging and downsizing.

Purchase

Purchase Lithium Ion Fuel Available

Chrysler Disbands ENVI Electric Vehicle Group; Function Absorbed into Traditional Line Organization

Green Car Congress

NOVEMBER 8, 2009

At the North American International Auto Show in January 2009, Chrysler had introduced two new EV concepts and updates on three earlier EV concepts developed by the ENVI group. As outlined in the plan, Chrysler is putting a more immediate focus on downsizing its engines and improving fuel economy across the entire portfolio.

Chrysler

Chrysler Electric Vehicles Minivan Vehicles

Citroën introduces first members of new 3-cylinder gasoline engine family; 1.0L and 1.2L PureTech reduce fuel consumption about 25%

Green Car Congress

DECEMBER 11, 2012

Citroën is introducing the first members of its new PureTech family of three-cylinder gasoline engines on the C3, DS3 and C-Elysée (for international markets) ranges. To achieve these results, PureTech development called for a number of changes, chief among which were: Downsizing. Reduced internal friction. Click to enlarge.

Engine

Engine Gasoline Fuel MPG

Ford Begins EcoBoost Engine Production

Green Car Congress

MAY 20, 2009

EcoBoost technology combines turbocharging and direct gasoline injection to deliver up to 20% improved fuel economy, 15% fewer CO 2 emissions and superior driving performance compared with larger displacement engines. To ensure quality is built into the engine from the outset, Ford developed a new, internal database for its operations.

Ford

Ford Engine Cleveland Production

DOE BETO seeking input on Optima initiative for co-optimization of fuels and engines

Green Car Congress

DECEMBER 17, 2015

Instead, the internal combustion engine will continue to be integral to the transportation of people and goods for the foreseeable future. High-research octane number (RON) fuels are known to enable more efficient, higher-performance SI operation via engine downsizing and boosting.

Engine

Engine Fuel Fuel Economy Light

Ford focused on lightweighting as a major enabling technology for low-emission, fuel-efficient vehicles from ICEs to EVs

Green Car Congress

JANUARY 14, 2011

Ford made a splash at the North American International Auto Show (NAIAS) in Detroit with the introduction of 10 C-segment cars, including a new hybrid and plug-in hybrid based on the C-MAX ( earlier post )—this following on the roll-out the prior week of the Ford Focus Electric ( earlier post ). Hydrogen is farther out.

Ford

Ford Fuel Emissions Vehicles

Toyota Aims to Reduce Fuel Cell Vehicle Cost to 1/10 of Current By Commercialization in 2015; Reduction to Another 1/10 With Scale

Green Car Congress

OCTOBER 4, 2009

During his presentation at the recent California Air Resources Board (ARB) ZEV Technology Symposium, Tatsuaki Yokoyama, from Toyota Motor Engineering & Manufacturing North America, said that Toyota aimed to reduce the cost of fuel cell vehicles to 1/10 of the current level by design and materials improvement by commercialization in 2015.

2015

2015 Toyota Commercial Fuel

Ford introduces new Fusion midsize sedan with new hybrid and Energi plug-in hybrid versions

Green Car Congress

JANUARY 9, 2012

liter Atkinson-cycle four-cylinder gasoline engine, significantly downsized from the previous 2.5-liter This powertrain is anticipated to deliver best-in-class fuel economy of 47 mpg (5.0L/100km) Fusion Hybrid also features an all-new 2.0-liter liter unit while maintaining performance standards.

Fusion

Fusion Plug-in Hybrid Ford

Renault 2010 Environment Workshop, Part 1: Combustion Engine Technology and Product Plans

Green Car Congress

JUNE 7, 2010

In terms of powertrain technologies, Renault focused on the introduction of new technologies for internal combustion engines and conventional transmissions, as well as outlining its commitment to electric powertrains. The downsizing process involved shortening the piston stroke by reducing the size of the crank pin and conrod assembly.

Environment

Environment Engine 2010 Parts

CPT and Eminox to collaborate on development of retrofit electric supercharging and aftertreatment solutions for heavy-duty vehicles

Green Car Congress

OCTOBER 8, 2015

The additional control of compressed air for transient performance provided by Cobra means that we can purge diesel particulate filters and other forms of exhaust after-treatment for NO x reduction and, most importantly, without compromising fuel economy. Phil Bush, technology manager at Eminox.

Vehicles

Vehicles Exhaust Emissions Diesel

Delphi develops new high-pressure common rail systems for heavy-duty and light-duty engines; Euro VI and beyond

Green Car Congress

MAY 1, 2012

Delphi Automotive has developed a common rail fuel system technology for heavy-duty diesel engines that combines proven hardware with an innovative architecture, allowing vehicle manufacturers to meet Euro VI emissions standards without significant modification to their base engines. New high pressure heavy duty common rail systems.

Engine

Engine Light Diesel 2000

ICCT-led analysis of turbocharged, downsized engine tech finds lower costs and greater benefits than 2012 EPA/NHTSA analysis; 48V, e-boost, Miller

Green Car Congress

OCTOBER 31, 2016

A new white paper published by the International Council on Clean Transportation (ICCT), in collaboration with Eaton, Ricardo, JCI, BorgWarner, Honeywell, and the ITB Group, analyzes current turbocharged, downsized gasoline engine technology developments and trends. Source: ICCT. Click to enlarge.

Downsizing

Downsizing EPA Engine Eaton

SAE technical experts: fuel cell technology has advanced significantly, FC vehicle production has begun, further cost reductions & infrastructure development required

Green Car Congress

APRIL 27, 2016

Employing original Honda technologies, the fuel cell stack for this model was downsized by 33% compared to the previous version of the fuel cell stack yet delivers 130 kW of output, with an output density of 3.1 Cost, productivity, efficiency and fuel economy now offer the highest focus for technology investment, he said.

Fuel

Fuel Honda Hydrogen Production

Achates OPGCI project targeting 50% fuel efficiency gains over downsized GDI engine at reduced cost

Green Car Congress

DECEMBER 17, 2015

The engine should yield fuel efficiency gains of more than 50% compared to a downsized, turbo-charged gasoline direct injection engine, while reducing the overall cost of the powertrain system, said Fabien Redon, Vice President, Technology Development at Achates Power. Earlier post.)

Downsizing

Downsizing Engine Fuel Gasoline

Groups join forces on fuel efficient engine

Green Cars News

MAY 3, 2009

China’s fourth largest car manufacturer Chongqing Changan Automobile Co and Orbital Corporation Limited have formed a joint development to work on a concept engine. It is hoped that with fuel economy improvements, the Euro IV emission levels will be achieved. It is not the first time that the two companies have joined forces.

Engine

Engine Fuel Fuel Economy Petrol

DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

Green Car Congress

AUGUST 16, 2016

Develop and demonstrate technologies to enable a downsized, boosted, lean, low temperature gasoline combustion engine system that improves fuel economy while meeting emissions requirements. valve faces, piston crowns, and exhaust ports) to improve fuel economy. General Motors. HRL Laboratories, LLC. Description. Federal funding.

Vehicles

Vehicles Plug-in Lithium Ion Universal

Ford introduce the EcoBoost petrol engine

Green Cars News

SEPTEMBER 21, 2009

Significantly, the manufacturer has also confirmed that a smaller sized Ecoboost engine is also in development, so we could perhaps see a Ford Ka or Ford Fiesta in the not-too-distant future benefit from this new technology. opportunity to downsize – large-engine performance, but with the size, weight and fuel economy of a much smaller unit.

Petrol

Petrol Ford Engine Downsizing

KPMG survey finds global auto execs expect ICE dominance for some time; ICE downsizing and PHEVs to receive greatest investment over next 5 years; mobility-as-a-service in cities

Green Car Congress

JANUARY 10, 2013

Even in the BRICs, ICE downsizing has become a big deal. The survey found that most companies are hedging their bets and spreading funding across a wide range of areas, with ICE downsizing and plug-in hybrids expected to receive the greatest investment over the next 5 years. There are four Chinese manufacturers in the top 10.

Downsizing

Downsizing Global Auto Brazil

NRC report finds significant number of near-term technologies could greatly reduce fuel consumption in passenger cars

Green Car Congress

JUNE 16, 2011

To address this request, the NRC formed the Committee on the Assessment of Technologies for Improving Light-Duty Vehicle Fuel Economy. Further, the benefits of some technologies are not completely represented in the tests used to estimate corporate average fuel economy (CAFE).

Fuel

Fuel Downsizing Fuel Economy Diesel

DOE FY17 SBIR Phase I Release 2 topics include fuel cells, EV batteries, engines

Green Car Congress

NOVEMBER 8, 2016

Applications should focus on innovative materials, manufacturing processes, and/or designs of bipolar plates. Fuel Efficiency Improvement Technologies for Conventional Stoichiometric Gasoline Direct Injection Multi-Cylinder Internal Combustion Engine.

Engine

Engine Fuel Hydrogen Batteries

NRC report finds Federal analysis to set LD CAFE and GHG standards generally of high quality; some technologies and issues should be re-examined

Green Car Congress

JUNE 19, 2015

The analysis used by federal agencies to set standards for fuel economy (CAFE) and greenhouse gas emissions for new US light-duty vehicles from 2017 to 2025 was thorough and of high caliber overall, according to a new report from the National Research Council. UMTRI Survey: US drivers want better fuel economy, don’t care how.

Standards

Standards Fuel Economy Economy EPA

Ricardo to assist Lifan in development of 1.2L turbocharged DI gasoline engines for downsizing applications

Calls for an international 48V electrical standard for vehicles; looming WLTP implementation

GM to double models with 40 mpg highway or better by 2017; ongoing manufacturing efficiency improvements

Eaton contributing several components to DOE SuperTruck II program

Ford to bring 20 new engines and transmissions to China and improve fleet fuel economy by more than 20% by 2015; producing the new 1.0L EcoBoost in China

EPA official: the future of the internal combustion engine is bright and clear

New Delphi Technologies 500+ bar GDi system cuts gasoline particulate emissions by up to 50%, reduces fuel consumption

General Motors plans to be carbon-neutral by 2040; eliminate LDV tailpipe emissions by 2035

Hyundai plans 12 new SUV models through 2021; ICE, hybrid, PHEV, BEV; 2022 Tucson

ICCT working paper highlights benefits of current and emerging light-duty diesel technology; “promising pathway for compliance”

New powertrain line-up for Hyundai 2022 Tucson

CPT developing 48-volt electric supercharger for micro-mild hybrids

Federal Mogul develops advanced aluminum piston for high-performance light-duty diesel engines

Navigant Research forecasts plug-ins will be 2.4% of global new vehicle sales by 2023; luxury brands to represent about 50% of that

Former Commerce and Transportation Secretary Norman Mineta urges technology neutral policies in reaching proposed CAFE standards

SwRI’s HEDGE Technology Eliminates Low-Speed Pre-Ignition in Highly Boosted Engines

EC rolls out CARS 2020 action plan for European auto industry

Eaton Highlights Range of New Products to Reduce Fuel Consumption and Emissions

Honeywell Transportation Systems Forecast: turbocharged vehicles to account for 48% of annual global sales by 2021; electric boosting emerges

Ford Unveils Next-Generation Global Focus at NAIAS; Features New 2.0L DI Engine with Powershift Dual-Clutch Transmission for NA Market

UK government and industry to invest >$1.5B in Advanced Propulsion Centre (APC) for low carbon vehicles; technology roadmaps for 5 priority areas

Study finds technology cost of achieving European 2020 LDV CO2 targets more than offset by resultant fuel savings

Ford Unveils Ford Fiesta for North America at Los Angeles Auto Show; 1.6L I4 with Ti-VCT Delivers Estimated 40 mpg Highway

National Research Council Study Finds That Available Technologies Can Result in Significant Fuel Savings for Passenger Vehicles Over the Next 15 Years, But at Higher Purchase Prices for Consumers

Chrysler Disbands ENVI Electric Vehicle Group; Function Absorbed into Traditional Line Organization

Citroën introduces first members of new 3-cylinder gasoline engine family; 1.0L and 1.2L PureTech reduce fuel consumption about 25%

Ford Begins EcoBoost Engine Production

DOE BETO seeking input on Optima initiative for co-optimization of fuels and engines

Ford focused on lightweighting as a major enabling technology for low-emission, fuel-efficient vehicles from ICEs to EVs

Toyota Aims to Reduce Fuel Cell Vehicle Cost to 1/10 of Current By Commercialization in 2015; Reduction to Another 1/10 With Scale

Ford introduces new Fusion midsize sedan with new hybrid and Energi plug-in hybrid versions

Renault 2010 Environment Workshop, Part 1: Combustion Engine Technology and Product Plans

CPT and Eminox to collaborate on development of retrofit electric supercharging and aftertreatment solutions for heavy-duty vehicles

Delphi develops new high-pressure common rail systems for heavy-duty and light-duty engines; Euro VI and beyond

ICCT-led analysis of turbocharged, downsized engine tech finds lower costs and greater benefits than 2012 EPA/NHTSA analysis; 48V, e-boost, Miller

SAE technical experts: fuel cell technology has advanced significantly, FC vehicle production has begun, further cost reductions & infrastructure development required

Achates OPGCI project targeting 50% fuel efficiency gains over downsized GDI engine at reduced cost

Groups join forces on fuel efficient engine

DOE to award up to $137M for SuperTruck II, Vehicle Technology Office programs

Ford introduce the EcoBoost petrol engine

KPMG survey finds global auto execs expect ICE dominance for some time; ICE downsizing and PHEVs to receive greatest investment over next 5 years; mobility-as-a-service in cities

NRC report finds significant number of near-term technologies could greatly reduce fuel consumption in passenger cars

DOE FY17 SBIR Phase I Release 2 topics include fuel cells, EV batteries, engines

NRC report finds Federal analysis to set LD CAFE and GHG standards generally of high quality; some technologies and issues should be re-examined

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