ML350s use a 3.5-liter V6 that produces 302 horsepower and earns 18 mpg city and 22 mpg highway. Standard features on the well-equipped base ML350 include: navigation, leather upholstery, dual-zone automatic climate control, a sunroof, heated and ventilated front seats, a power liftgate, a rearview camera, xenon headlights, a 14-speaker harman/kardon sound system, and parking and blind spot assists