Audi RS4 vs Audi S6
Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.
Vehicles
Vehicles
2025 Audi S6
Overview
| Spec | Audi RS4quattro | Audi S6Premium |
|---|---|---|
| Selected trim | quattro | Premium |
| Body style | Sedan | Sedan |
| Drivetrain | all wheel drive | all wheel drive |
| Fuel type | premium unleaded (required) | premium unleaded (required) |
| Transmission | 6-speed manual | 8-speed shiftable automatic |
| Engine type | gas | mild hybrid |
| Model year | 2008 | 2025 |
Pricing & market
| Spec | Audi RS4quattro | Audi S6Premium |
|---|---|---|
| MSRP | $66,910 (best) | $75,900 |
| For sale now | 0 | 0 |
Fuel economy & range
| Spec | Audi RS4quattro | Audi S6Premium |
|---|---|---|
| Combined MPG | 15 MPG | 22 MPG (best) |
| City MPG | 13 MPG | 19 MPG (best) |
| Highway MPG | 20 MPG | 27 MPG (best) |
| Fuel tank | 16.6 gal | 19.3 gal (best) |
Performance
| Spec | Audi RS4quattro | Audi S6Premium |
|---|---|---|
| Horsepower | 420 hp | 444 hp (best) |
| Torque | 317 lb-ft | 442 lb-ft (best) |
| Engine size | 4.2 L (best) | 2.9 L |
| Cylinders | V8 | V6 |
Size & capability
| Spec | Audi RS4quattro | Audi S6Premium |
|---|---|---|
| Seating | 5 seats | 5 seats |
| Doors | 4 | 4 |
| Cargo volume | 13.4 cu ft | 13.7 cu ft (best) |
| Payload | — | 1,102 lbs (best) |
| Curb weight | — | 4,519 lbs (best) |
| Ground clearance | 3.7 in (best) | — |
| Wheelbase | 104.3 in | 115.3 in (best) |
| Length | 180.7 in | 195 in (best) |
| Width | 71.5 in | 74.3 in (best) |
| Height | 55.7 in | 56.9 in (best) |
Safety & recalls
| Spec | Audi RS4quattro | Audi S6Premium |
|---|---|---|
| NHTSA overall | — | Not Rated |
| Frontal crash (driver) | 4 / 5 ★ (best) | Not Rated |
| Frontal crash (passenger) | 4 / 5 ★ (best) | Not Rated |
| Side crash (driver) | — | Not Rated |
| Side crash (passenger) | — | Not Rated |
| Side pole | — | Not Rated |
| Rollover | 4 / 5 ★ (best) | Not Rated |
| 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 RS4 | Audi S6 |
|---|---|---|
| 1 | quattro $66,910 MSRP(Currently comparing) | Premium $75,900 MSRP(Currently comparing) |
| 2 | quattro $81,900 MSRP | Premium Plus $80,200 MSRP |
| 3 | — | Prestige $84,100 MSRP |
Audi RS4 vs Audi S6 FAQ
- Which is better: 2008 Audi RS4 or 2025 Audi S6?
- It depends on priorities. OpenDealer compares 2008 Audi RS4 vs 2025 Audi S6 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
- Which costs less: 2008 Audi RS4 or 2025 Audi S6?
- Based on starting MSRP, the 2008 Audi RS4 starts lower at $66,910.
- Which has better startingMsrp: 2008 Audi RS4 or 2025 Audi S6?
- The 2008 Audi RS4 leads on startingMsrp in this comparison (66,910).
- Which has better combinedMpg: 2008 Audi RS4 or 2025 Audi S6?
- The 2025 Audi S6 leads on combinedMpg in this comparison (22).
- Which has better horsepower: 2008 Audi RS4 or 2025 Audi S6?
- The 2025 Audi S6 leads on horsepower in this comparison (444).
- How do the NHTSA safety ratings compare for 2008 Audi RS4 vs 2025 Audi S6?
- NHTSA overall crash-test ratings in this comparison: Audi S6 (Not Rated/5 NHTSA overall).