Engine: 5.0-liter sohc 24-valve V8

Engine Options: 268-hp 3.5-liter V6; 302-hp 5.0-liter V8

Transmission: 7-speed automatic

Transmission Options: 7-speed automatic

Standard Safety Equipment: frontal airbags, side-impact airbags, curtain airbags; electronic stability control, ABS, EBD, all-wheel drive, electronic traction control

Optional Safety Equipment: Parktronic

Basic Warranty: 3 years/50,000 miles

Assembled In: Tuscaloosa, Alabama

Model Tested: Mercedes-Benz R500 ($55,500)

Standard Equipment: dual-zone air conditioning, leather upholstery, power steering, power disc brakes, suspension, power windows, power locks, power mirrors, console, cruise control, message center, trip computer, eight-speaker AM/FM/WB/CD system, COMAND information display and control system, birdseye maple wood trim, eight-way power seats, folding second- and third-row bucket seats, rain-sensing wipers, multi-function steering wheel, integrated garage door opener; load-leveling rear suspension, 17-inch alloy wheels and tires

Options as Tested: Premium package

Destination Charge: 775

Gas Guzzler Tax:

Layout: all-wheel drive

Horsepower: 302 @ 5600

Torque: 339 @ 2700-4750

Miles Per Gallon in the City/Highway:

Wheelbase: 126.6 inches

Length/Width/Height in Inches: 203.0/77.5/65.2 inches

Track Front/Rear: 65.5/65.3 inches

Turning Cycle: feet

Seating Capacity: 6 people

Head/Hip/Leg Room, f: 39.8/60.3/39.8 inches

Head/Hip/Leg Room, m: 40.4/59.6/36.2 inches

Head/Hip/Leg Room, r: 37.2/52.8/32.4 inches

Trunk Volume: 85 cubic feet

Payload:

Suspension, f: independent, double A-arms, coil springs

Ground Clearance: 5.8 inches

Curb Weight: 4845 pounds

Towing Capacity: pounds

Tires: P255/55R18

Brakes: 13.8/13.0 disc/disc with ABS, EBD

Fuel Capacity: 25.1 Gallons