The 2008 Hummer H3 gets available V8 power. Base versions of this smallest Hummer offering retain a 242-hp 3.7-liter 5-cylinder engine. Optional on the base and standard on the top-line Alpha trim is a 300-hp 5.3-liter V8 borrowed from General Motors' large pickups. Standard on 5-cylinder base models is a 5-speed manual transmission. An automatic transmission is optional for the 5-cylinder and included with the V8. Maximum towing capacity is 4500 lb with the 5-cylinder, 6000 lb with the V8. All 2008 Hummer H3s come with all-wheel drive that includes low-range gearing for off-road use. An available Off-Road Adventure Suspension Package includes ultra-low gearing and a locking rear axle for severe off-road forays. Available safety features include ABS, traction control, antiskid system, and curtain side airbags. An available H3X model has the 5-cylinder engine and includes copious chrome add-ons, leather upholstery, and larger wheels. The same features are available as part of an H3X Package on the Alpha.