The G-Class is available with two different engines: a new-for 2009 382-hp (an increase of 90-hp) 5.5-liter V8 with a seven-speed automatic transmission in the G500, and a 500-hp (an increase of 7-hp) 5.5-liter supercharged V8 with five-speed automatic transmission in the AMG-tuned G55. Loaded with standard luxury features such as a leather interior, premium wood trim, rear parking assistance with camera, rapid HDD navigation system with aerial view, bi-xenon headlights, rain-sensing wipers, dual zone climate control, heated/cooled power driver and passenger seats with memory, to name a few. Standard safety equipment includes Mercedes' Tele Aid system, anti-lock brakes, brake assist, electronic stability control and side-curtain airbags.For 2009, in addition to engine upgrades, the Mercedes-Benz G-Class has been given a fresh look incorporating a new front grille design and grille guards. The new COMAND infotainment system includes a 40-gigabyte hard drive, in-dash 6-disc CD/DVD player, GPS navigation, Bluetooth wireless connectivity, harmon/kardon surround-sound system, in-dash memory card reader, high-definition digital radio, and satellite radio with real-time traffic service. The G55 features new 19-inch AMG light-alloy wheels, a new Alcantara headliner and a redesigned wood/leather selector lever.