The facelift BMW M550i is the spiritual successor to the W124 500E, but even then, these results are unexpected.
Audi RS6 Avant vs BMW M550i xDrive
| Category | BMW M550i xDrive | Audi RS6 Avant (C8) |
|---|---|---|
| Engine layout | 4.4 l V8 | 4.0 l V8 |
| Max power (ps / bhp) | 530 / 523 | 600 / 591 |
| Max torque (Nm / lb-ft) | 750 / 553 | 800 / 590 |
| Curb weight (kg / lb) | 1934 / 4264 | 2188 / 4824 |
| Power / tonne (ps / bhp) | 274 / 270 | 274 / 270 |
| Average price | €100,000 | €130,000 |
Lap Times
| Track | BMW M550i xDrive | Audi RS6 Avant (C8) |
|---|---|---|
| EuroSpeedway Lausitz | 1:37.63 | 1:35.85 |
| Winton (National Circuit) | 1:35.40 | 1:36.20 |
| Hockenheim GP | 1:58.10 | 1:56.60 |
Acceleration
| Speed & distance | BMW M550i xDrive | Audi RS6 Avant (C8) |
|---|---|---|
| 0 - 50 kph | 1.7 s | 1.3 s |
| 0 - 80 kph | 2.9 s | 2.4 s |
| 0 - 100 kph | 3.6 s | 3.3 s |
| 0 - 130 kph | 6.2 s | 5.2 s |
| 0 - 160 kph | 8.7 s | 7.5 s |
| 0 - 180 kph | 10.8 s | 9.5 s |
| 0 - 200 kph | 12.0 s | 11.7 s |
| 0 - 60 mph | 3.5 s | 3.1 s |
| 0 - 100 mph | 8.6 s | 7.8 s |
| 0 - 130 mph | 14.6 s | 13.6 s |
| Est. 1/8 mile | 8.4 s @ 100.7 mph | 8.0 s @ 103.1 mph |
| 1/4 mile | 11.8 s | 11.2 s |
Rolling acceleration
| Speed | BMW M550i xDrive | Audi RS6 Avant (C8) |
|---|---|---|
| 60 - 100 kph (4) | 2.6 s | 2.7 s |
| 60 - 100 kph (5) | 3.5 s | 3.8 s |
| 80 - 120 kph (5) | 3.4 s | 3.3 s |
| 80 - 120 kph (6) | 4.7 s | 4.8 s |
| 80 - 120 kph (7) | 6.5 s | 6.6 s |
| 80 - 120 kph (8) | 12.9 s | 13.1 s |
Braking distance
| Speed | BMW M550i xDrive | Audi RS6 Avant (C8) |
|---|---|---|
| 100 kph - 0 | 33 m (108 ft) | 33 m (108 ft) |
| 200 kph - 0 | 134 m (441 ft) | 132 m (432 ft) |
| 70 mph - 0 | 45 m (149 ft) | 49 m (160 ft) |
| 100 mph - 0 | 91 m (299 ft) | 97 m (318 ft) |
General performance
| Category | BMW M550i xDrive | Audi RS6 Avant (C8) |
|---|---|---|
| Top speed | 251 kph (156 mph) | 306 kph (190 mph) |
| Est. max acceleration | 0.77 g (8 m/s²) | 0.87 g (8 m/s²) |
| 18m slalom | 67.3 kph (41.8 mph) | 66.9 kph (41.6 mph) |
| Fuel economy | 8.4 l/100 km (28 mpg US / 34 UK) | 7.9 l/100 km (30 mpg US / 36 UK) |
| Lateral acceleration | 0.95 g (9 m/s²) | 0.95 g (9 m/s²) |
Summary
| Category | BMW M550i xDrive | Audi RS6 Avant (C8) |
|---|---|---|
| Track Performance | 291 | 298 |
| Straight line speed | 2550 | 2766 |
| Total | 2841 | 3064 |
Verdict
RS6 Avant is the fastest by a small margin.
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Acceleration graph
