For 2007, Mercedes-Benz returns with new models bringing the line-up to four: ML320 CDI, ML350, ML500, and ML63 AMG. The ML500 features a 5.0-liter 302-horsepower V8 engine while the ML63 AMG features a 6.3-liter 503-horsepower V8 engine. Both engines are mated to a seven-speed automatic transmission. Standard amenities across the board include power convenience features, burl walnut wood interior trim, the COMAND system, privacy glass, heated seats, and the TeleAid Communication System. The ML63 AMG adds standard heated mirrors, moonroof, R/V monitor, DVD-based Navigation system, tinted taillights, and chrome twin exhaust pipes. Optional features include a Keyless Go engine start, entertainment system, parking sensors, and a trailer hitch.