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ORNL study finds best current use of natural gas for cars is efficient production of electricity for EVs

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However, they also noted, high PTW efficiencies and the moderate fuel economies of current compressed natural gas vehicles (CNGVs) make them a viable option as well. If CNG were to be eventually used in hybrids, the advantage of the electric generation/EV option shrinks. Their open access paper is published in the journal Energy.

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Audi presents latest SQ5 TDI diesel; 48V MHEV & electric compressor

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The SQ5 TDI was first introduced in the fall of 2012 as the first Audi S model powered by a diesel engine. This offers the advantage since exhaust gas cleaning responds more quickly. The exhaust manifold benefits from improved insulation; the exhaust gas reaches the optimum temperature more quickly after a cold start.

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Mayor of Indianapolis announces plan to modernize city fleet to plug-ins and CNG by 2025

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Calling it a vital national security issue, Indianapolis Mayor Greg Ballard (a retired Marine officer and Gulf War veteran) signed Executive Order #6, 2012 making Indianapolis the first city in the nation to require the purchase of either electric or plug-in hybrid vehicles for the city’s non-police fleet, and the use of CNG in heavy-duty vehicles.

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Toyota’s new RAV4 plug-in hybrid SUV offers 39 miles AER, 90 MPGe

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seconds—the second quickest acceleration time in the Toyota lineup—the 2021 RAV4 Prime has an estimated 39 miles of all-electric range—the highest AER of any PHEV SUV on the market. As a technology comparison, the 2006-2012 RAV4 offered an optional 269-hp, 3.5-liter liter gas V6 engine that reached 0-60 mph in 6.3-seconds—a

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Georgia Tech life-cycle study finds TCO of medium-duty electric and diesel delivery trucks similar; electric life-cycle energy use and GHG lower than diesel

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They also found that the total costs of ownership (TCO) of the electric and diesel trucks are similar. Over an array of possible conditions, the median TCO of electric trucks is 22% less than that of diesel trucks on the NYCC. However, the cost-competitiveness of the electric truck diminishes in drive cycles with higher average speed.

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EPA, DOT Propose New Fuel Economy Labels; Addressing GHG Emissions, Fuel Consumption and Advanced Technology Vehicles

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One label design prominently features a letter grade (ranging from A+ to D) to communicate the vehicle’s overall fuel economy and greenhouse gas emissions performance. A sample of the second proposed label for an extended range electric vehicle. Click to enlarge.

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New BMW 3 Series includes a new 4-cylinder TwinPower Turbo, 8-speed automatic and start-stop; ActiveHybrid 3 model in 2012

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l/100 km (57 mpg US) and CO 2 emissions of 109 g/km. BMW will add further engines to the line-up in 2012, when the BMW ActiveHybrid 3 (using a powertrain similar to that of the ActiveHybrid 5, earlier post ) will also make its premiere. mpg US), an 11% improvement on its 160 kW/218 hp predecessor. liters per 100 km (36.8

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