Dynamic performance is ensured by BMW's straight six petrol and diesel power units. European models will be offered with the 3.0 liter gasoline and diesel engines from the new 5-Series. Capable of 210 km/h (130 mph) in standard trim, an optinally available high-speed set up (included in the Sports Package) boosts the top speed of the X3 3.0i to 224 km/h (139 mph) and the X3 3.0d to 218 km/h (135 mph). Other engine variants will follow, including the 184 hp 2.5 liter straight six in the North American and Australian markets. All models come standard with a six speed manual gearbox, a five-speed automatic transmission being available as an option.
A special highlight of the BMW X3 is the fully new developed intelligent xDrive all-wheel drive system. xDrive allows infinitely adjustable and fully variable distribution of torque front to rear. It feeds optimum torque to the required axle at any time, countering understeer and oversteer while cornering on road. Off-road xDrive significantly improves traction by distributing drive forces to the axle with most grip. As soon as wheel spin threatens, the electro-hydraulic centre coupling transfers power to the axle with greater traction. Dynamic Stability Control (DSC) complements xDrive, but intervenes far later and is required less frequently.
An broad range of both classic as well as sporty, modern materials and colors offers unique possibilities to personalise the interior of the new X3. In the cockpit the two circular dials are grouped together in typical BMW style in an elegant binnacle. Right in the middle of the instrument panel the driver will find the optional 16:9 navigation system colour monitor, which flips up automatically whenever required. Numerous storage compartments round off the high functionality of the X3, and for those who want to transport even larger sports equipment, BMW's unique Trailer Stability Control promises safer towing of boat and other trailers. This extension of the DSC comes as standard, just like automatic Hill Descent Control (HDC) for driving downhill safely even on loose or slippery surfaces.
In developing the X3, BMW also focussed in particular on vehicle stability during fast cornering, a common problem with the higher stance of SUVs. The engineering principle of BMW's Sports Activity Vehicles — the front drive shaft extending through the oil sump (a feature shared with GM's GMT 360/370 family of SUVs) — gives the X3 a very low centre of gravity and reduces body roll. xDrive's intelligent distribution of torque helps keep the X3 very stable and sure-footed even in fast bends, preventing many critical situations from occuring. Should further difficulties arise, DSC Dynamic Stability Control will intervene to help stabilise the vehicle.