If a quick BMW sedan is what you're after, you don't need to spring for a new M5 when you have this as an option.

And when it comes to BMW tuning there’s one name that crops ... On this car we have a Schnitzer spring kit that works in conjunction with the M550i’s adaptive M suspension set up and lowers ...

While the M5 and its M5 Competition companion may be the talk of the BMW town nowadays, that doesn’t make the M550i xDrive any less desirable. The $73,900 super sedan is still insanely quick for ...