Drag coefficient of RS7 is much better than that of RS6. That makes difference at top speeds.
Audi RS6 vs Audi RS7 Sportback
| Category | Audi RS7 Sportback | Audi RS6 (C7) |
|---|---|---|
| Engine layout | 4.0 l V8 | 4.0 l V8 |
| Max power (ps / bhp) | 560 / 552 | 560 / 552 |
| Max torque (Nm / lb-ft) | 700 / 516 | 700 / 516 |
| Curb weight (kg / lb) | 1994 / 4396 | 1997 / 4403 |
| Power / tonne (ps / bhp) | 281 / 277 | 280 / 276 |
| Average price | €129,000 | €129,000 |
Lap Times
| Track | Audi RS7 Sportback | Audi RS6 (C7) |
|---|---|---|
| Sachsenring | 1:39.57 | 1:39.51 |
| Mendig AFB Circuit | 1:56.84 | 1:53.85 |
| Hockenheim Short | 1:13.40 | 1:13.70 |
Acceleration
| Speed & distance | Audi RS7 Sportback | Audi RS6 (C7) |
|---|---|---|
| 0 - 40 kph | 1.2 s | 1.2 s |
| 0 - 80 kph | 2.6 s | 2.6 s |
| 0 - 100 kph | 3.5 s | 3.5 s |
| 0 - 120 kph | 4.7 s | 4.7 s |
| 0 - 130 kph | 5.4 s | 5.4 s |
| 0 - 140 kph | 6.0 s | 6.1 s |
| 0 - 160 kph | 7.7 s | 7.7 s |
| 0 - 180 kph | 9.7 s | 9.8 s |
| 0 - 200 kph | 11.7 s | 12.1 s |
| Est. 100 - 140 kph | 2.7 s | 2.4 s |
| Est. 100 - 200 kph | 8.6 s | 9.0 s |
| 0 - 60 mph | 3.2 s | 3.3 s |
| 0 - 100 mph | 7.7 s | 7.7 s |
| Est. 1/8 mile | 8.1 s @ 103.1 mph | 8.2 s @ 101.9 mph |
| 1/4 mile | 11.6 s @ 123.0 mph | 11.4 s |
General performance
| Category | Audi RS7 Sportback | Audi RS6 (C7) |
|---|---|---|
| Top speed | 305 kph (190 mph) | 305 kph (190 mph) |
| Est. max acceleration | 0.88 g (9 m/s²) | 0.84 g (8 m/s²) |
| 18m slalom | 67.6 kph (42.0 mph) | 67.1 kph (41.7 mph) |
| Fuel economy | 8.5 l/100 km (28 mpg US / 33 UK) | 9.9 l/100 km (24 mpg US / 29 UK) |
| 100 kph - 0 | 34 m (111 ft) | 34 m (111 ft) |
| 190 kph - 0 | 130 m (428 ft) | 127 m (417 ft) |
Summary
| Category | Audi RS7 Sportback | Audi RS6 (C7) |
|---|---|---|
| Track Performance | 98 | 100 |
| Straight line speed | 100 | 99 |
| Overall | 99 | 100 |
Verdict
There is no clear winner in this comparison.
This comparison has been viewed 4.6k times.
Acceleration graph
Mental 13y ago
@MS65
Because there is no power to weight ratio for RS6, and that negates RS6's points. That's why the curb weights should always be added.
@FastestLaps
You should update the data for both RS6 and RS7. There were lots of drag tests already (see DeDe's / benzsl's comments on both pages.)
I would take a RS7 over RS6, because I prefer 4-door coupe's exterior more. In anything other they are absolutely identical.
