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455 hp 2014 Corvette Stingray to deliver EPA-estimated 29 mpg highway

Green Car Congress

The 2014 Corvette Stingray will deliver up to an EPA-estimated 17 mpg US (13.8 l/100 km) in the city, and 29 mpg (8.1 The estimate reflects an average of fuel economy in both the default “Tour” mode, which delivers 28 mpg highway, and driver-selectable “Eco” mode, which delivers 30 mpg highway.

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Porsche delivering double-digit improvements in fuel economy across entire current model series

Green Car Congress

Porsche is consistently targeting improving fuel economy with each model change. L/100 km respectively, is attributable to the switch to direct fuel injection and the introduction of the seven-speed Porsche Doppelkupplungsgetriebe (PDK) instead of the five-speed automatic torque converter transmission Tiptronic S.

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Porsche introducing new plug-in Cayenne S E-Hybrid SUV; third plug-in from Porsche

Green Car Congress

The introduction of this model, together with the Panamera S E-Hybrid ( earlier post ) and the 918 Spyder, will give Porsche three production plug-in hybrid models. The combined fuel consumption is now 3.4 l/100 km (69 mpg US), with 79 g/km CO 2. Fuel consumption is 11.5 l/100 km (20 to 21 mpg US), for 267-261 g/km CO 2.

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U-M study finds current CAFE standards create profit incentive for larger vehicles

Green Car Congress

The current vehicle footprint-based Corporate Average Fuel Economy (CAFE) standards create a financial incentive for automakers to increase vehicle size, except under certain limited conditions of consumer preference for vehicle size, according to a study by University of Michigan researchers Kate Whitefoot and Steven Skerlos.

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Road Test: 2021 Cadillac XT5 Premium Luxury FWD

Clean Fleet Report

Competing in the premium midsize SUV category, the 2021 Cadillac XT5 is right in the middle of stiff competition, including models from Acura, Audi, BMW, Genesis, Infiniti, Land Rover, Lexus, Lincoln, Maserati, Mercedes-Benz, Porsche, Tesla and Volvo. The fuel economy, which is best in Tour, was aided by cylinder deactivation, where the 3.6L

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Road Test: 2022 Mitsubishi Mirage SE Hatchback

Clean Fleet Report

The 40+ MPG Low-Cost Transportation King. The front wheels are turned by the optional Continuously Variable Transmission (CVT) delivering an EPA mpg rating of 36 city/43 highway/39 combined. mpg, which is a nice bump over the EPA Combined estimate of 39 mpg. Steering feel was light and road feel was light.

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Road Test: 2024 Range Rover Velar Dynamic SE Mild Hybrid

Clean Fleet Report

The mild hybrid electric motor boosts the gasoline engine when accelerating and modestly helps with fuel economy. Using 91 octane fuel, the 3.0-liter liter mild hybrid has an EPA rating of 19 mpg city/25 highway and 21 combined. mpg, which was acceptable for such a powerful engine and the 4,430-pound curb weight.

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