A full-size luxury SUV, the 2010 Mercedes-Benz M-Class seats five passengers with plenty of room left over for cargo. The M-Class is available in a wide range of trims; including the all-new ML450 hybrid. The ML350 BlueTEC utilizes a 3.0L turbodiesel V6 which produces 210 hp and 400 lb-ft of torque while earning an estimated 24 mpg on the highway. The standard ML350 houses a 268 hp 3.5L V6. The more powerful ML550 has a 5.5L V8 producing 382 hp and at the top of the range is the ML63 AMG which utilizes a 503 hp 6.3L V8. All M-Class SUVs are equipped with seven-speed automatic transmissions except the hybrid which has a CVT.