New BMW Z4 M website (photos, specs)

BMW has launched a new website for its Z4 M roadster. There are some new images of the exterior and interior of the car, as well as further confirmation of its impressive specifications. The car will feature the 343 horsepower inline-six engine from the E46 M3, in addition to the M3's limited-slip differential. Wheels and tires will come as 225/45Ã--18x8 front and 255/40Ã--18x9 rear. The interior has been upgraded with more leather and carbon fiber, and less brushed aluminum and plastic. Considering the Z4 M weighs about 350 pounds less than an M3, its performance should be phenomenal. In October, we brought you the first pictures and specs of the new model. [via].