Audi S5 vs Mercedes-Benz SLK350
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2016 Mercedes-Benz SLK350
Overview
| Spec | Audi S5Premium | Mercedes-Benz SLK350SLK 350 |
|---|---|---|
| Selected trim | Premium | SLK 350 |
| Body style | Hatchback | Convertible |
| Drivetrain | all wheel drive | rear wheel drive |
| Fuel type | premium unleaded (recommended) | premium unleaded (required) |
| Transmission | 7-speed automated manual | 7-speed shiftable automatic |
| Engine type | gas | gas |
| Model year | 2026 | 2016 |
Pricing & market
| Spec | Audi S5Premium | Mercedes-Benz SLK350SLK 350 |
|---|---|---|
| MSRP | $63,300 | $59,200 (best) |
| Lowest listing price | $57,140 (best) | — |
| Median listing price | $70,464 (best) | — |
| Highest listing price | $77,803 (best) | — |
| For sale now | 30 (best) | 0 |
Fuel economy & range
| Spec | Audi S5Premium | Mercedes-Benz SLK350SLK 350 |
|---|---|---|
| Combined MPG | 23 MPG | 24 MPG (best) |
| City MPG | 20 MPG | 21 MPG (best) |
| Highway MPG | 29 MPG | 29 MPG |
| Fuel tank | 14.8 gal | 18.5 gal (best) |
Performance
| Spec | Audi S5Premium | Mercedes-Benz SLK350SLK 350 |
|---|---|---|
| Horsepower | 362 hp (best) | 302 hp |
| Torque | 406 lb-ft (best) | 273 lb-ft |
| Engine size | 3 L | 3.5 L (best) |
| Cylinders | V6 | V6 |
Size & capability
| Spec | Audi S5Premium | Mercedes-Benz SLK350SLK 350 |
|---|---|---|
| Seating | 5 seats (best) | 2 seats |
| Doors | 4 (best) | 2 |
| Cargo volume | 37.5 cu ft (best) | 10.1 cu ft |
| Payload | 992 lbs (best) | — |
| Curb weight | 4,288 lbs (best) | — |
| Wheelbase | 114 in (best) | 95.7 in |
| Length | 190.3 in (best) | 162.8 in |
| Width | 73.2 in (best) | 71.5 in |
| Height | 56.5 in (best) | 51.2 in |
Safety & recalls
| Spec | Audi S5Premium | Mercedes-Benz SLK350SLK 350 |
|---|---|---|
| NHTSA overall | Not Rated | — |
| Frontal crash (driver) | Not Rated | — |
| Frontal crash (passenger) | Not Rated | — |
| Side crash (driver) | Not Rated | — |
| Side crash (passenger) | Not Rated | — |
| Side pole | Not Rated | — |
| Rollover | Not Rated | — |
| Open recalls (YMM scope) | None reported (best) | 2 |
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 S5 | Mercedes-Benz SLK350 |
|---|---|---|
| 1 | Premium $63,300 MSRP(Currently comparing) | SLK 350 $59,200 MSRP(Currently comparing) |
| 2 | Premium Plus $66,200 MSRP | — |
| 3 | Prestige $70,900 MSRP | — |
Live inventory
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Audi S5 vs Mercedes-Benz SLK350 FAQ
- Which is better: 2026 Audi S5 or 2016 Mercedes-Benz SLK350?
- It depends on priorities. OpenDealer compares 2026 Audi S5 vs 2016 Mercedes-Benz SLK350 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2026 Audi S5 or 2016 Mercedes-Benz SLK350?
- Based on starting MSRP, the 2016 Mercedes-Benz SLK350 starts lower at $59,200. Live Audi S5 listings start at $57,140.
- Which has better startingMsrp: 2026 Audi S5 or 2016 Mercedes-Benz SLK350?
- The 2016 Mercedes-Benz SLK350 leads on startingMsrp in this comparison (59,200).
- Which has better combinedMpg: 2026 Audi S5 or 2016 Mercedes-Benz SLK350?
- The 2016 Mercedes-Benz SLK350 leads on combinedMpg in this comparison (24).
- Which has better horsepower: 2026 Audi S5 or 2016 Mercedes-Benz SLK350?
- The 2026 Audi S5 leads on horsepower in this comparison (362).
- Which has better seats: 2026 Audi S5 or 2016 Mercedes-Benz SLK350?
- The 2026 Audi S5 leads on seats in this comparison (5).
- How do the NHTSA safety ratings compare for 2026 Audi S5 vs 2016 Mercedes-Benz SLK350?
- NHTSA overall crash-test ratings in this comparison: Audi S5 (Not Rated/5 NHTSA overall).