Cadillac STS vs Mercedes-Benz CLS550
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2018 Mercedes-Benz CLS550
Overview
| Spec | Cadillac STSV6 Luxury Sport | Mercedes-Benz CLS550CLS 550 |
|---|---|---|
| Selected trim | V6 Luxury Sport | CLS 550 |
| Body style | Sedan | Sedan |
| Drivetrain | rear wheel drive | rear wheel drive |
| Fuel type | regular unleaded | premium unleaded (required) |
| Transmission | 6-speed shiftable automatic | 9-speed shiftable automatic |
| Engine type | gas | gas |
| Model year | 2011 | 2018 |
Pricing & market
| Spec | Cadillac STSV6 Luxury Sport | Mercedes-Benz CLS550CLS 550 |
|---|---|---|
| MSRP | $47,280 (best) | $75,150 |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | Cadillac STSV6 Luxury Sport | Mercedes-Benz CLS550CLS 550 |
|---|---|---|
| Combined MPG | 21 MPG | 21 MPG |
| City MPG | 18 MPG | 18 MPG |
| Highway MPG | 27 MPG (best) | 26 MPG |
| Fuel tank | 17 gal | 21.1 gal (best) |
Performance
| Spec | Cadillac STSV6 Luxury Sport | Mercedes-Benz CLS550CLS 550 |
|---|---|---|
| Horsepower | 302 hp | 402 hp (best) |
| Torque | 272 lb-ft | 443 lb-ft (best) |
| Engine size | 3.6 L | 4.7 L (best) |
| Cylinders | V6 | V8 |
Size & capability
| Spec | Cadillac STSV6 Luxury Sport | Mercedes-Benz CLS550CLS 550 |
|---|---|---|
| Seating | 5 seats (best) | 4 seats |
| Doors | 4 | 4 |
| Cargo volume | 13.8 cu ft (best) | 11 cu ft |
| Towing capacity | 1,000 lbs (best) | — |
| Curb weight | 3,973 lbs (best) | 4,233 lbs |
| Wheelbase | 116.4 in (best) | 113.2 in |
| Length | 196.7 in (best) | 194.5 in |
| Width | 72.6 in (best) | — |
| Height | 57.6 in (best) | 55.8 in |
Safety & recalls
| Spec | Cadillac STSV6 Luxury Sport | Mercedes-Benz CLS550CLS 550 |
|---|---|---|
| Rollover | 5 / 5 ★ (best) | — |
| Open recalls (YMM scope) | None reported | None reported |
Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.
Trim overview
All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.
| Trim | Cadillac STS | Mercedes-Benz CLS550 |
|---|---|---|
| 1 | V6 Luxury Sport $47,280 MSRP(Currently comparing) | CLS 550 $75,150 MSRP(Currently comparing) |
| 2 | V6 Luxury $50,820 MSRP | CLS 550 4MATIC $77,650 MSRP |
| 3 | V6 Premium $56,380 MSRP | — |