Audi S4 vs BMW X4 M40i
| Category | BMW X4 M40i | Audi S4 (B8) |
|---|---|---|
| Engine layout | 3.0 l R6 | 3.0 l V6 |
| Max power (ps / bhp) | 360 / 355 | 333 / 328 |
| Max torque (Nm / lb-ft) | 465 / 343 | 440 / 325 |
| Curb weight (kg / lb) | 1894 / 4176 | 1754 / 3867 |
| Power / tonne (ps / bhp) | 190 / 187 | 190 / 187 |
Lap Times
| Track | BMW X4 M40i | Audi S4 (B8) |
|---|---|---|
| Hockenheim Short | 1:17.80 | 1:16.70 |
| Autozeitung test track | 1:44.50 | 1:41.80 |
Acceleration
| Speed & distance | BMW X4 M40i | Audi S4 (B8) |
|---|---|---|
| 0 - 40 kph | 1.4 s | 1.5 s |
| 0 - 80 kph | 3.5 s | 3.8 s |
| 0 - 100 kph | 4.8 s | 4.9 s |
| 0 - 180 kph | 14.6 s | 14.9 s |
| 0 - 200 kph | 18.8 s | 17.5 s |
| Est. 100 - 200 kph | 15.3 s | 12.6 s |
| Est. 1/8 mile | 9.4 s @ 90.7 mph | 9.2 s @ 93.2 mph |
| 1/4 mile | 13.5 s | 12.9 s |
General performance
| Category | BMW X4 M40i | Audi S4 (B8) |
|---|---|---|
| Top speed | 268 kph (167 mph) | 250 kph (155 mph) |
| Est. max acceleration | 0.62 g (6 m/s²) | 0.63 g (6 m/s²) |
| Fuel economy | 11.9 l/100 km (20 mpg US / 24 UK) | 13.8 l/100 km (17 mpg US / 20 UK) |
Summary
| Category | BMW X4 M40i | Audi S4 (B8) |
|---|---|---|
| Track Performance | 94 | 100 |
| Straight line speed | 96 | 100 |
| Overall | 95 | 100 |
Verdict
S4 is the fastest by a small margin.
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Acceleration graph
