The X5 4.8is is one of the greatest BMW's ever made, they are simple but yet are fascinating and actualy pretty fast for a sport utility vehicle(SUV). The X5 4.8is is a V8 M powered engine with 350 horsepower, and 350 pound torque. With wheels so wide, it looks as though they took them off a corvette and put them on the X5. With the all wheel drive at the power of your foot on the pedal, the X5 4.8is goes from 0-60 mph in 6.1 seconds. Not only is it fast but can also tow up to 6000 lbs. The X5 is an all use vehicle, good for towing, off road, and speed.