Over 0–100 km/h, X4 M40d G02 wins (4,94 s vs 6,12 s).
Performance comparison
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
Simulation
Calibration
Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.
| X7 xDrive40d G07 | X4 M40d G02 | |
|---|---|---|
| 0–100 km/h | 6,12 s | 4,94 s+1,18 s |
| 400 m standing start | 14,40 s | 13,29 s+1,11 s |
| 1,000 m standing start | 26,46 s | 24,39 s+2,07 s |
| Top speed (electronically limited) | 245 km/h | 250 km/h−5 km/h |
| Power-to-weight ratio | 7,26 kg/hp | 5,81 kg/hpbetter ratio |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
Simulated performance at each stage. Winner in green.
| Palier | X7 xDrive40d G07 | X4 M40d G02 |
|---|---|---|
| 0–30 km/h | 1,35 s | 1,25 stight gap |
| 0–50 km/h | 2,25 s | 2,02 s |
| 0–80 km/h | 4,26 s | 3,53 s |
| 0–100 km/h | 6,12 s | 4,94 s |
| 0–120 km/h | 8,49 s | 6,72 s |
| 0–160 km/h | 15,31 s | 11,71 s |
| 0–200 km/h | 27,30 s | 19,89 s |
| 400 m standing start | 14,40 s | 13,29 s |
| 1,000 m standing start | 26,46 s | 24,39 s |
| Top speed limited | 245 km/h | 250 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 340 hp | 6 cyl |
| Torque | 700 Nm | |
| Weight | 2 470 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Eight-speed Steptronic transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 326 hp | 6 cyl |
| Torque | 680 Nm | |
| Weight | 1 895 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed Steptronic |
Off the line, the Bmw X4 M40d hits 100 km/h in 4.94 s versus 6.12 s for the Bmw X7 xDrive40d. At this point, the Bmw X4 M40d leads by 1.18 s and sits roughly 9 m ahead.
At 200 metres, the Bmw X4 M40d is doing 137 km/h against 126 km/h for the Bmw X7 xDrive40d. The gap is 0.69 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw X4 M40d crosses the line in 13.29 s versus 14.39 s. The 1.11 s gap represents roughly 47 m of track - a gap visible to the naked eye.
Past 400 metres, the Bmw X4 M40d continues to build its lead. At 600 metres, it runs at 190 km/h versus 174 km/h. At 1,000 metres, the Bmw X4 M40d finishes in 24.38 s versus 26.45 s, with a 2.07 s lead. Both vehicles have similar top speeds (245 vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the Bmw X7 xDrive40d is capped at 245 km/h, the Bmw X4 M40d at 250 (i.e. 155 mph - industry threshold) km/h. This isn’t a physical engine limit - it’s a manufacturer choice, usually for tyre safety or homologation reasons. Neither car reaches its true aerodynamic top speed.
With two combustion powertrains, the difference comes down to power-to-weight ratio (7.26 kg/hp vs 5.81 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.90 seconds. The 1.18 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Swap one of the two models to explore an equivalent duel in the same segment.
Over 0–100 km/h, X4 M40d G02 wins (4,94 s vs 6,12 s).
X7 xDrive40d G07 goes from 0 to 100 km/h in 6,12 seconds (calibrated simulation).
X7 xDrive40d G07: 340 hp, ratio 7,26 kg/hp. X4 M40d G02: 326 hp, ratio 5,81 kg/hp.
X7 xDrive40d G07: 245 km/h. X4 M40d G02: 250 km/h.