Audi A6 
In 2014, four Audi A6 sedans are benefitting from quattro all-wheel drive. These are true five-seaters: large sedans powered by four-, six- and eight-cylinder gasoline engines that generate 211, 310 and 420 horsepower (the latter for the S6) respectively. This year, the Ingolstadt-based manufacturer is adding a turbodiesel version to the A6 line-up. It’s a 3.0L V6 TDI that delivers 240 horsepower and 428 lbs.-ft. of torque.
Pros
- Excellent fit and trim
- V6 is smooth and efficient
- Factory-standard AWD
- Spacious interior
- Good road holding
Cons
- Infotainment system is somewhat daunting
- Expensive options
- S6 is less powerful than its rivals
- Expensive to maintain
