2. Audi A8
The Audi A8 is one of the best luxury sedans on the market. The German automobile features a very impressive design and high-quality interior. The A8 is sold with a 3.0 liter super-charged V-6 that has a 333 horsepower rating. When buying the auto new, shoppers can upgrade the drivetrain to either a 6.3 liter W-12 rated at 500 horsepower, or to a 4.0 liter twin-turbo V-8 rated at 450 horsepower. The car comes stock with an eight-speed automatic transmission and all-wheel drive. The maximum speed of the A8 is 129 MPH, and the luxury car can go from zero to 60 MPH in only 6.4 seconds. The gas mileage rating of the auto is 24 MPG (city) and 36 MPG (highway).