8-speed automatic steptronic. This 2011 x3 is for bmw fans who are searching for a wonderful, low-mileage suv. New car test drive said it ... Builds on everything that made it bmw's top-selling suv and adds space for rear passengers, a ride smooth enough to satisfy the strictest critics, and all the latest drivetrain and chassis technologies at bmw's disposal... It is nicely equipped with features such as 8-speed automatic steptronic.