2024 Bmw M550i. The m550i's version of the engine redlines at 6500 rpm to the m5's 7200 rpm, so at full whack the m5 is a touch louder—81 dba versus 79 dba. Meet the new bmw m550i xdrive.

Thanks to the electrification (and a 19.4kwh battery), the 550 is officially capable of more than 250mpg. Find out how it drives and what features set the bmw m550i apart from its main rivals.