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 |
|---|---|---|
| Frontal crash (driver) | 4 / 5 ★ (best) | — |
| Frontal crash (passenger) | 4 / 5 ★ (best) | — |
| Rollover | 4 / 5 ★ | 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 | 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 |