Others have followed, but the BMW X5 invented a class. As BMW's 3 Series defines the sport sedan, the X5 defines an expanding group of big, powerful SUVs that shine for their on-pavement agility and lightning acceleration, with an emphasis on luxury appointments. The X5 feels as capable on the road as the big BMW 7 Series sedan (even though it isn't). All X5s come with standard permanently engaged four-wheel drive, traction control, an anti-skid system, all-disc antilock braking, and a tailgate with separate lift glass. The four-wheel-drive system automatically brakes individual wheels to limit slippage in low-grip conditions. You get alot of standard equipment including a power tilt/telescopic steering wheel, 70/30 split folding rear seat, and front side-impact airbags. BMW's head-protecting tubular airbags deploy from above front door windows in a side impact. For its size, fuel efficiency is decent with EPA estimates of 16/21 mpg city/highway. Not surprisingly, BMW offers up an SUV with excellent build quality, acceleration, exterior finish, and interior materials. And there is plenty of cargo room for all your stuff. Forget rational vs. emotional. If you seek a luxurious sport-utility that makes a fine, highly useful everyday vehicle, with high style and some off-road capability, the 2003 BMW X5 is the benchmark.