Thanks to that vast parts bin, the X1's engine choices are restricted only by marketing considerations, and not platform limitations. In Europe, the X1 will start as the xDrive20d and xDrive23d using two variations of the 2.0-liter turbo-diesel engine, rated at 175 hp and 201 hp, respectively. The xDrive28i—powered by the naturally aspirated, 3.0-liter straight-six rated at 261 hp—will also be available at launch. BMW will later add the xDrive18d and xDrive18i (both rated at 141 hp) as well as the 168-hp xDrive20i. drug treatment program cosmetic surgery