Thursday, May 26, 2011

Audi Engine Downsizing and New EPA Fuel Economy Ratings

Engine downsizing has been an industry buzzword for the past few years. The idea behind downsizing is to replace a large naturally aspirated engine with a smaller turbocharged or supercharged engine. At first this concept only applied to mainstream cars but has recently appeared on luxury brands as well. Even Mercedes AMG models are replacing their 6.3 liter naturally aspirated V8s with slightly smaller 5.5 liter twin-turbo V8s. Audi has gone one further with its all new 2012 A6 as the previous V6 model has been replaced with a four cylinder turbo and the V8 option has been dropped in favor of a supercharged V6. These downsized engines have delivered for Audi. Paired with a CVT transmission the A6 2.0T delivers 25 city and 33 highway for 28 combined, numbers rarely seen in the luxury category. The quattro 3.0 TFSI does quite well as well rated at 19 city and 28 highway.

Here are some other notable new ratings. City/highway (combined)

Aston Martin Rapide: 13/19 (15)
Audi A8 W12: 14/21 (16)
Lamborghini Aventador Coupe: 11/17 (13)
Lamborghini Avenador Roadster: 11/17 (13)
Lexus LFA: 11/16 (12)
Volkswagen Passat TDI: 31/43 (35)

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