BMW 5 Series
The BMW 5 Series midsize luxury sedan is available in a seemingly endless variety of models and trim levels, from a plug-in hybrid variant to a high-performance M5 producing more than 600 horsepower. Clearly, there is a 5 Series for everyone. While not as potent as the M5, the M550i xDrive still packs quite a punch thanks to a 523-horsepower V8 engine. The lone transmission choice is an eight-speed automatic.