8. 2014 Audi A8 L TDI Quattro Tiptronic
The larger 2014 Audi A8L TDI has the same 3.0-liter turbo-diesel V6 found in the other TDI models, but under the hood of the A8L, it produces 406 lb-ft of torque rather than 428 lb-ft (A6 TDI). Its horsepower rating is identical however at 240 hp, but all the extra roominess comes with a starting price of $83,395. Fuel economy for such a large, luxury sedan is a respectable 24 mpg in the city and 36 mpg on the highway, though the A8L TDI is the slowest member of the A8 family, accelerating to 60 mph in 6.4 seconds.
SEE ALSO: 2014 Audi A8L TDI Review