The 330ci convertible is equipped with a Steptronic automanual transmission, a sport-tuned suspension, and ventilated front and rear disc brakes. This convertible comes with the more powerful 3.0-liter engine, larger brakes and standard 17-inch wheels. The more powerful 330 coupe reaches 60 from zero in just 6.4 seconds and features a broad torque band. This engine meets low-emission vehicle (LEV) standards. Automated Power Top All BMW convertibles come with a glass rear window and rollover protection. Safety equipment on all 3 Series models includes All-Season Traction (AST) and Dynamic Stability Control (DSC), along with dual front airbags, door-mounted side airbags and BMW's patented Head Protection System (HPS).