The BMW X6 offers excellent ride control, though the optional sport suspension may be a bit stiff for many. Despite a curb weight of about 5,300 pounds, the 400-horsepower V8...
coupled with all-wheel drive offers astounding acceleration: BMW claims 0-60 mph in less than 5.5 seconds. On the race tracks where we sampled the X6 we had previously driven many cars, and the BMW X6 xDrive50i's speed at the end of the straightaways rivaled that we recorded in a 1999 Porsche 911
. However, the X6's all-season tires and higher center of gravity produced a radically lower level of cornering and stopping power than did the Porsche, as even BMW's extremely advanced all-wheel-drive system can't help when you enter a turn too fast. The BMW X6 xDrive35i, which is about 400 pounds lighter, provides more than adequate acceleration – about 6.5 seconds 0-60 mph – and handled better on the track.