The 2008 BMW M is available in Coupe or Convertible bodystyles. Both are powered by a 3.2-liter 330-horsepower in-line six-cylinder engine, mated to a six-speed manual transmission. Standard amenities include all power conveniences, on-board computer, keyless remote entry, and hill ascent control. The Roadster also comes standard with rollover protection, glass rear window, and an automatic soft top roof. Optional features include BMW Assist Communication System, DVD-based navigation system, and heated leather seats. An Optional Premium Package offers BMW Assist Communication System, outside and inside automatic day/night mirrors, premium audio system, dual power seat adjusters with driver's memory, speed control and Storage Package.