BMW launched the X5 (for 2000) as a single, upscale model, powered by a 4.4-liter V8 engine mated to a five-speed Steptronic transmission. For 2001, BMW added the lower-priced 3.0i model, powered by a 2.8-liter inline-six driving through a five-speed manual gearbox, with the Steptronic automatic as an option. The six-cylinder engine produces 225 horsepower, compared to 290 for the 4.4-liter V8. And the 3.0i rolls on 17-inch wheels, rather than the 18-inch rims found under the 4.4i.

The super-high-performance 4.6is joined the model line for 2002, pumped up by a 4.6-liter V8 rated 340 horsepower and 350 pounds-feet of torque. That's mega-power, by any standard. The 4.6is comes with a five-speed Steptronic transmission similar to the one found on the 4.4i, but programmed and geared differently for a more sporting character. Its 20-inch wheels and W-rated tires (275/40 in front and 315/35 in the rear) are wide enough to impress Fred Flintstone. Unique trim cues distinguish this model, including a rear air diffusor, wind splitters at the sides of front and rear bumpers, a titanium-finish bumper grille, and Shadowline trim with clear turn signal and side marker lenses. Two big, chromed oval exhaust outlets finish off the rear. 4.6is comes with a comprehensive list of luxury equipment, including xenon high-intensity discharge (HID) low-beam headlamps, rain-sensing windshield wipers, and a powered glass moonroof.

3.0i and 4.4i are well-equipped, and can be fitted with a short list of stand-alone options and four popular option packages. The moonroof, for example lists for $1,099 by itself, but is also included the Premium Package for both models. A Sport Package ($2100 on 3.0i, $1600 on 4.4i), which tightens the suspension and upgrades interior and exterior trim; and an adjustable ride-height system ($1200 for 3.0i and $500 on 4.4i) used to be mutually exclusive but are now available in combination.

Rear-mounted side-impact air bags ($385), a retractable load floor ($380), and satellite navigation ($1800) are extra-cost options on all X5 models, including the 4.6is.

To help keep drivers on the road and in control, all X5s come with full-time all-wheel drive and Dynamic Stability Control, which includes traction control, electronic brake proportioning, Dynamic Brake Control, an electronic stability program, and Hill Descent Control. Additionally, all X5s benefit from a four-wheel independent suspension, four-wheel anti-lock disc brakes, and rack-and-pinion steering.