BMW has unveiled the 2014 X5,  The biggest change to the recipe comes in the form of the X5 sDrive35i, which is the first rear-wheel drive version of the high-riding five-door to date. Buyers will, of course, continue to be able to opt for all-wheel drive, and both models will get their thrust from a 3.0-liter, turbocharged inline six-cylinder engine. That powerplant makes 300 horsepower and 300 pound-feet of torque and is mated to an eight-speed automatic transmission. BMW says the combination is good enough to get the SUV to 60 miles per hour in around 6.2 seconds.