Breathtakingly expensive, hugely powerful, aggressively thirsty, and anachronistic in looks, this is not for the shy. With its roots going back to 1979, the legendary G-wagen retains its basic fashionista-meets-Sandinista look. Its twin-turbo 5.5-liter V-8 cranks out 536 hp and 560 lb-ft of torque and mates to a seven-speed automatic. Mercedes’ all-wheel-drive system, 4MATIC, is standard. The G65 turns up the crazy even more with a bi-turbo 6.0-liter V-12 that makes 603 hp and 738 lb-ft.