The 3.0L/225-hp straight-six and now-290-hp 4.4L engines are still available, but the X5's top dog is now the 4.6L/340-hp powerplant. Compression has been bumped up from 10.2:1 (4.4L) to 10.5:1. Bore ...
A 342-hp performance update to Benz's original ML-class lays the groundwork for all future Mercedes-AMG luxury sport utility vehicles. The soul of this super-ute dwells in its engine. AMG starts with ...