September 22, 2016
| Vehicle Type | Four-door, five passenger sedan |
| Chassis | Aluminum unibody |
| Drive Configuration | Rear wheel drive / 4MATIC |
| Exterior Dimensions (in) | |
| Wheelbase | 124.6 |
| Length | 206.5 |
| Width (w/o mirrors) | 75.0 |
| Height | 58.7 |
| Track (front / rear) | 63.0 / 63.2 |
| Ground Clearance (max load) | 5.12 |
| Curb Weight (lbs) | 4,630 |
| Interior Dimensions (in) | |
| Head room (front/rear) | 39.7 / 37.4 |
| Leg room (front/rear) | 41.4 / 43.1 |
| Shoulder room (front/rear) | 59.7 / 59.1 |
| Capacities | |
| Cabin Volume (cu-ft) | 112.2 |
| Trunk Size (cu-ft) | 16.3 |
| Suspension | |
| Front | Independent multi-link suspension with air spring, single-tube shock absorber with continuously adjustable damping and tubular torsion bar |
| Rear | Independent multi-link suspension with air spring, single-tube shock absorber with continuously adjustable damping and tubular torsion bar |
| Steering | |
| Type | Speed-dependent, electro-mechanical rack-and-pinion |
| Ratio | 15.5 : 1 |
| Turning Circle (ft) | 40.4 |
| Brake Disc Diameter / Thickness (in) | |
| Front | 14.6 / 1.4 |
| Rear | 14.2 / 1.0 |
| Standard Wheels (in) | |
| Front | 8.0 x 18 (Cast) |
| Rear | 8.0 x 18 (Cast) |
| Standard Tires | |
| Front | 245 / 50 R18 |
| Rear | 245 / 50 R18 |
| Engine | |
| Engine Type | 4.7L V8 biturbo |
| Engine Material | Aluminum-Alloy |
| Valvetrain / Arrangement | DOHC, 4-valves per cylinder |
| Displacement (cc) | 4,663 |
| Bore (in / mm) | 3.66 / 92.9 |
| Stroke (in / mm) | 3.39 / 86.0 |
| Compression Ratio | 10.5 : 1 |
| Horsepower @ rpm | 449 @ 5,250 – 5,500 |
| Torque @ rpm | 516 @ 1,800 –3,500 |
| Redline (rpm) | 6,300 |
| Transmission | |
| Transmission Type | 9G-TRONIC 9-speed automatic |
| Shift Controls | Wheel-mounted shift paddles |
| Gear Ratios: | |
| 1st | 5.35 : 1 |
| 2nd | 3.24 : 1 |
| 3rd | 2.25 : 1 |
| 4th | 1.64 : 1 |
| 5th | 1.21 : 1 |
| 6th | 1.00 : 1 |
| 7th | 0.86 : 1 |
| 8th | 0.72 : 1 |
| 9th | 0.60 : 1 |
| Reverse | 4.80 : 1 |
| Final Drive | 2.47 : 1 |
| Performance | |
| 0-60 mph (seconds) | 4.8 |
| Top Speed (mph) | 130 (electronically limited) |
| Fuel Economy | |
| City / Highway / Combined | 18 / 26 / 21 (4MATIC: 16 / 25 / 20) |
| Fuel Tank (gallons) | 24.6 |
| MSRP* | |
| S550 Sedan (RWD) | $96,600 |
| S550 4MATIC | $99,600 |
*does not include $925 destination & delivery charge
Note: Technical specifications subject to change
Please visit media.mbusa.com for more information.