The Volvo S80 is the elder statesman in the Swedish brand's line-up, and it's also the largest sedan that Volvo produces. The S80 is comfortable but not quite at the same level of tech as some of its rivals, and it can be had with either a 240 horsepower 3.2-litre six0cylinder engine or a turbocharged 3.0-litre six-cylinder that's good for 300 horsepower. The latter offer standard all-wheel drive, while both are shifted via a six-speed automatic transmission.