I very much enjoy driving this rig, It just goes down the road. It has almost 154,000, miles. This is part of what a review said about it. We, (CAR and Driver) flogged a few X5s equipped with the system at BMW’s test track across the street from its factory in Spartanburg, South Carolina, where the X5 is built. Running water at strategic places on the track created conditions where all, some, or none of the wheels was able to get a grip. What we discovered was, well, nothing. The xDrive did its work with no discernible lag, noise, or effort. The X5 remained under control through all but the most moronic driving. Transparent is a word in vogue these days, but it falls short in describing this four-wheel-drive system; invisible is more like it.Displacement: 268 cu in, 4398cc Power: 315 hp @ 5400 rpm Torque: 324 lb-ft @ 3600 rpm TRANSMISSION: 6-speed automatic DIMENSIONS: Wheelbase: 111.0 in Length: 183.7 in Width: 73.7 in Height: 67.2 in Curb weight: 4960 lb C/D TEST RESULTS: Zero to 60 mph: 7.1 sec Zero to 100 mph: 18.5 sec Zero to 120 mph: 29.6 sec Street start, 5-60 mph: 7.3 sec Standing 1/4-mile: 15.4 sec @ 92 mph Top speed (governed): 127 mph Braking, 70-0 mph: 178 ft Roadholding, 300-ft-dia skidpad: 0.77 g FUEL ECONOMY: EPA fuel economy, city driving: 16 mpg C/D-observed fuel economy: 16 mpg
