Mercedes-Benz G63

The Mercedes-AMG G63 comes with a twin-turbocharged 4.0-liter V-8 engine that makes 577 horsepower and 627 lb-ft of torque. A nine-speed automatic gearbox with steering-wheel-mounted paddle shifters sends all that power to the all-wheel-drive system (4Matic, in Mercedes marketing lingo). Low-range gearing (2.93:1 reduction) is standard as are three locking differentials, allowing the G63 to scale steep dirt grades with ridiculous ease. At our test track, the nearly 5800-pound G63 rocketed from zero to 60 mph in just 3.9 seconds. Along with its extra power, the G63 has AMG-specific suspension tuning. Ride comfort is vastly improved versus older G-wagens, but given this SUV's towering height and off-road mission, you shouldn't expect much in the way of handling ability. And there's still quite a bit of wind noise at highway speeds. Properly equipped, the G63 can tow up to 6500 pounds.