I can’t see how it would be faster as the n63-4.8 has more horsepower. I can’t see how it would be quicker to 60/62/100mph as the 650 is lighter. The Audi 079 4.2L is a great engine as recognised by Wards Top 10 but BMW 650 didn’t even qualify as it retailed well at over $65,000 in the US.
Audi S4 vs BMW 650i
| Category | Audi S4 (B6) | BMW 650i |
|---|---|---|
| Engine layout | 4.2 l V8 | 4.8 l V8 |
| Max power (ps / bhp) | 344 / 339 | 367 / 362 |
| Max torque (Nm / lb-ft) | 410 / 302 | 490 / 361 |
| Curb weight (kg / lb) | 1710 / 3770 | 1615 / 3560 |
| Power / tonne (ps / bhp) | 201 / 198 | 227 / 224 |
Lap Times
| Track | Audi S4 (B6) | BMW 650i |
|---|---|---|
| Autozeitung test track | 1:46.20 | 1:44.60 |
| Oschersleben | 1:52.17 | 1:50.15 |
Performance
| Category | Audi S4 (B6) | BMW 650i |
|---|---|---|
| 0 - 100 kph | 5.5 s | 5.4 s |
| 0 - 200 kph | 20.6 s | 19.8 s |
| Est. 100 - 200 kph | 15.1 s | 14.4 s |
| 0 - 100 mph | 12.5 s | 12.6 s |
| Est. 1/8 mile | 9.9 s @ 87.6 mph | 9.6 s @ 89.5 mph |
| 1/4 mile | 13.4 s | 13.4 s |
| Top speed | 261 kph (162 mph) | 250 kph (155 mph) |
| Est. max acceleration | 0.57 g (6 m/s²) | 0.58 g (6 m/s²) |
Summary
| Category | Audi S4 (B6) | BMW 650i |
|---|---|---|
| Track Performance | 95 | 100 |
| Straight line speed | 97 | 100 |
| Overall | 96 | 100 |
Verdict
650i is the fastest by a small margin.
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Acceleration graph
