2007 BMW 3.0si Roadster

The 3.0si is the upper-level trim for the Z4 Roadster.  This upgrade will add leather seats, automatic climate control, a more powerful sound system and special aluminum interior trim.  The 3.0si also houses an enhanced version of the 3.0 liter inline six, with 255 horsepower and 220 pound-feet of torque.  The transmission choices are the same: a six-speed manual is standard and a six-speed automatic with BMW's Steptronic sequential shift control is available as an option.  Other options include a navigation system and  Sport Package (performance tires, sport-tuned suspension and BMW's Dynamic Driving Control).