Over 0–100 km/h, X4 M40d G02 wins (4,81 s vs 5,49 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 M50d G07 | X4 M40d G02 | |
|---|---|---|
| 0–100 km/h | 5,49 s | 4,81 s+0,68 s |
| 400 m standing start | 13,82 s | 13,13 s+0,69 s |
| 1,000 m standing start | 25,28 s | 24,04 s+1,24 s |
| Top speed (electronically limited) | 250 km/h | 250 km/h |
| Power-to-weight ratio | 6,15 kg/hp | 5,94 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 M50d G07 | X4 M40d G02 |
|---|---|---|
| 0–30 km/h | 1,37 s | 1,18 s |
| 0–50 km/h | 2,23 s | 1,93 s |
| 0–80 km/h | 3,92 s | 3,44 s |
| 0–100 km/h | 5,49 s | 4,81 s |
| 0–120 km/h | 7,47 s | 6,53 s |
| 0–160 km/h | 13,10 s | 11,29 s |
| 0–200 km/h | 22,66 s | 18,75 s |
| 400 m standing start | 13,82 s | 13,13 s |
| 1,000 m standing start | 25,28 s | 24,04 s |
| Top speed limited | 250 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 | 400 hp | 6 cyl |
| Torque | 760 Nm | |
| Weight | 2 460 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Eight-speed Steptronic transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 340 hp | 6 cyl |
| Torque | 700 Nm | |
| Weight | 2 020 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
Off the line, the Bmw X4 M40d hits 100 km/h in 4.81 s versus 5.49 s for the Bmw X7 M50d. At this point, the Bmw X4 M40d leads by 0.68 s and sits roughly 8 m ahead.
At 200 metres, the Bmw X4 M40d is doing 139 km/h against 132 km/h for the Bmw X7 M50d. The gap is 0.47 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw X4 M40d crosses the line in 13.13 s versus 13.82 s. The 0.69 s gap represents roughly 31 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 193 km/h versus 184 km/h. At 1,000 metres, the Bmw X4 M40d finishes in 24.04 s versus 25.28 s, with a 1.24 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.
Both rivals share the same electronic speed cap: the Bmw X7 M50d and the Bmw X4 M40d are governed to 250 (i.e. 155 mph - industry threshold) km/h. At that speed, standard-fit tyres approach their safety threshold - an industrial ceiling common to most electric vehicles in this segment. Neither car shows its true aerodynamic potential in this duel.
With two combustion powertrains, the difference comes down to power-to-weight ratio (6.15 kg/hp vs 5.94 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.69 seconds. The 0.68 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 (4,81 s vs 5,49 s).
X7 M50d G07 goes from 0 to 100 km/h in 5,49 seconds (calibrated simulation).
X7 M50d G07: 400 hp, ratio 6,15 kg/hp. X4 M40d G02: 340 hp, ratio 5,94 kg/hp.
X7 M50d G07: 250 km/h. X4 M40d G02: 250 km/h.