2013 Nissan Sentra compare

The powerful, comfortable 2013 Mercedes-Benz CLS 63 AMG feels like a car that's worth its high asking price, but we'd wait for the next generation of its Comand interface before taking the plunge.

The smooth and quiet 2013 Jaguar XJ makes driver comfort its top priority, but an aging cabin technology package and an unrefined fuel-saver system give a rough edge to this refined ride.

Larger than you would expect for a midsize sedan, the 2013 Nissan Altima offers distinctive ride quality and some surprising available cabin tech, but engine choices slip behind the tech curve.

The 2014 Mazda6 i Grand Touring outshines much of the competition in the battle for your midsize sedan dollars, hitting most of the right marks, but some of its luster is dulled by the more powerful and efficient turbo-diesel and i-ELOOP models just around the corner.