Audi S8 vs Mercedes-Benz CLS63 AMG S
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2018 Mercedes-Benz CLS63 AMG S
Overview
| Spec | Audi S8S8 Sedan | Mercedes-Benz CLS63 AMG SAMG CLS 63 S |
|---|---|---|
| Selected trim | S8 Sedan | AMG CLS 63 S |
| Body style | Sedan | Sedan |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 7-speed shiftable automatic |
| Engine type | mild hybrid | gas |
| Model year | 2026 | 2018 |
Pricing & market
| Spec | Audi S8S8 Sedan | Mercedes-Benz CLS63 AMG SAMG CLS 63 S |
|---|---|---|
| MSRP | $130,000 | $108,900 (best) |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | Audi S8S8 Sedan | Mercedes-Benz CLS63 AMG SAMG CLS 63 S |
|---|---|---|
| Combined MPG | 18 MPG | 18 MPG |
| City MPG | 15 MPG | 16 MPG (best) |
| Highway MPG | 24 MPG (best) | 22 MPG |
| Fuel tank | 21.7 gal (best) | 21.1 gal |
Performance
| Spec | Audi S8S8 Sedan | Mercedes-Benz CLS63 AMG SAMG CLS 63 S |
|---|---|---|
| Horsepower | 563 hp | 577 hp (best) |
| Torque | 590 lb-ft | 590 lb-ft |
| Engine size | 4 L | 5.5 L (best) |
| Cylinders | V8 | V8 |
Size & capability
| Spec | Audi S8S8 Sedan | Mercedes-Benz CLS63 AMG SAMG CLS 63 S |
|---|---|---|
| Seating | 5 seats (best) | 4 seats |
| Doors | 4 | 4 |
| Cargo volume | 12.5 cu ft (best) | 11 cu ft |
| Payload | 915 lbs (best) | — |
| Curb weight | 5,126 lbs | 4,420 lbs (best) |
| Wheelbase | 123.2 in (best) | 113.2 in |
| Length | 209.5 in (best) | 196.7 in |
| Width | 76.6 in (best) | — |
| Height | 58.5 in (best) | 55.4 in |
Safety & recalls
| Spec | Audi S8S8 Sedan | Mercedes-Benz CLS63 AMG SAMG CLS 63 S |
|---|---|---|
| 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 | Audi S8 | Mercedes-Benz CLS63 AMG S |
|---|---|---|
| 1 | S8 Sedan $130,000 MSRP(Currently comparing) | AMG CLS 63 S $108,900 MSRP(Currently comparing) |