Audi S4 vs Mercedes-Benz SLK55 AMG
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2016 Mercedes-Benz SLK55 AMG
Overview
| Spec | Audi S4Premium | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Selected trim | Premium | AMG SLK 55 |
| Body style | Sedan | Convertible |
| Drivetrain | all wheel drive | rear wheel drive |
| Fuel type | premium unleaded (recommended) | premium unleaded (required) |
| Transmission | 8-speed shiftable automatic | 7-speed shiftable automatic |
| Engine type | gas | gas |
| Model year | 2025 | 2016 |
Pricing & market
| Spec | Audi S4Premium | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| MSRP | $54,900 (best) | $72,600 |
| Lowest listing price | $25,423 (best) | — |
| Median listing price | $25,423 (best) | — |
| Highest listing price | $25,423 (best) | — |
| For sale now | 1 (best) | 0 |
Fuel economy & range
| Spec | Audi S4Premium | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Combined MPG | 24 MPG (best) | 22 MPG |
| City MPG | 20 MPG (best) | 19 MPG |
| Highway MPG | 29 MPG (best) | 28 MPG |
| Fuel tank | 15.3 gal | 18.5 gal (best) |
Performance
| Spec | Audi S4Premium | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Horsepower | 349 hp | 416 hp (best) |
| Torque | 369 lb-ft | 398 lb-ft (best) |
| Engine size | 3 L | 5.5 L (best) |
| Cylinders | V6 | V8 |
Size & capability
| Spec | Audi S4Premium | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Seating | 5 seats (best) | 2 seats |
| Doors | 4 (best) | 2 |
| Cargo volume | 12 cu ft (best) | 10.1 cu ft |
| Payload | 1,036 lbs (best) | — |
| Curb weight | 3,880 lbs (best) | — |
| Wheelbase | 111 in (best) | 95.7 in |
| Length | 187.5 in (best) | 163.2 in |
| Width | 72.7 in (best) | 71.5 in |
| Height | 56.2 in (best) | 51.2 in |
Safety & recalls
| Spec | Audi S4Premium | Mercedes-Benz SLK55 AMGAMG SLK 55 |
|---|---|---|
| Rollover | 5 / 5 ★ (best) | — |
| Open recalls (YMM scope) | None reported (best) | 1 |
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 S4 | Mercedes-Benz SLK55 AMG |
|---|---|---|
| 1 | Premium $54,900 MSRP(Currently comparing) | AMG SLK 55 $72,600 MSRP(Currently comparing) |
| 2 | Premium Plus $58,800 MSRP | — |
| 3 | Prestige $61,500 MSRP | — |
Live inventory
Audi S4 vs Mercedes-Benz SLK55 AMG FAQ
- Which is better: 2025 Audi S4 or 2016 Mercedes-Benz SLK55 AMG?
- It depends on priorities. OpenDealer compares 2025 Audi S4 vs 2016 Mercedes-Benz SLK55 AMG on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2025 Audi S4 or 2016 Mercedes-Benz SLK55 AMG?
- Based on starting MSRP, the 2025 Audi S4 starts lower at $54,900. Live Audi S4 listings start at $25,423.
- Which has better startingMsrp: 2025 Audi S4 or 2016 Mercedes-Benz SLK55 AMG?
- The 2025 Audi S4 leads on startingMsrp in this comparison (54,900).
- Which has better combinedMpg: 2025 Audi S4 or 2016 Mercedes-Benz SLK55 AMG?
- The 2025 Audi S4 leads on combinedMpg in this comparison (24).
- Which has better horsepower: 2025 Audi S4 or 2016 Mercedes-Benz SLK55 AMG?
- The 2016 Mercedes-Benz SLK55 AMG leads on horsepower in this comparison (416).
- Which has better seats: 2025 Audi S4 or 2016 Mercedes-Benz SLK55 AMG?
- The 2025 Audi S4 leads on seats in this comparison (5).