BMWs have long been marketed as "the ultimate driving machines," and a big part of that appeal is the engines that sit under their hoods. Unlike brands that forge rich history with particular engine ...

Also shared with Land Rover, the S68 belts out up to 631 horsepower in the Alpina division's BMW X7 M60i-based XB7. Its party trick, however, is electrification. The XM Label remains the most ...