Over 0–100 km/h, X7 xDrive50i G07 wins (5,33 s vs 6,48 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 xDrive50i G07 | 125d F20LCI | |
|---|---|---|
| 0–100 km/h | 5,33 s−1,15 s | 6,48 s |
| 400 m standing start | 13,57 s−1,11 s | 14,68 s |
| 1,000 m standing start | 24,64 s−1,76 s | 26,40 s |
| Top speed (electronically limited) | 250 km/h+10 km/h | 240 km/h |
| Power-to-weight ratio | 5,32 kg/hpbetter ratio | 6,61 kg/hp |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
Simulated performance at each stage. Winner in green.
| Palier | X7 xDrive50i G07 | 125d F20LCI |
|---|---|---|
| 0–30 km/h | 1,39 s | 1,88 s |
| 0–50 km/h | 2,29 s | 3,03 s |
| 0–80 km/h | 3,92 s | 4,83 s |
| 0–100 km/h | 5,33 s | 6,48 s |
| 0–120 km/h | 7,08 s | 8,57 s |
| 0–160 km/h | 12,00 s | 14,58 s |
| 0–200 km/h | 19,96 s | 25,23 s |
| 400 m standing start | 13,57 s | 14,68 s |
| 1,000 m standing start | 24,64 s | 26,40 s |
| Top speed limited | 250 km/h | 240 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 462 hp | 8 cyl |
| Torque | 650 Nm | |
| Weight | 2 460 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Eight-speed Steptronic transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 224 hp | 4 cyl |
| Torque | 450 Nm | |
| Weight | 1 480 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
Off the line, the Bmw X7 xDrive50i hits 100 km/h in 5.33 s versus 6.48 s for the Bmw 125d. At this point, the Bmw X7 xDrive50i leads by 1.15 s and sits roughly 16 m ahead.
At 200 metres, the Bmw X7 xDrive50i is doing 137 km/h against 130 km/h for the Bmw 125d. The gap is 0.85 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw X7 xDrive50i crosses the line in 13.57 s versus 14.67 s. The 1.10 s gap represents roughly 48 m of track - a gap visible to the naked eye.
Past 400 metres, the Bmw X7 xDrive50i continues to build its lead. At 600 metres, it runs at 190 km/h versus 180 km/h. At 1,000 metres, the Bmw X7 xDrive50i finishes in 24.64 s versus 26.39 s, with a 1.76 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 240 km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the Bmw X7 xDrive50i is capped at 250 (i.e. 155 mph - industry threshold) km/h, the Bmw 125d at 240 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 (5.32 kg/hp vs 6.61 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.81 seconds. The 1.15 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, X7 xDrive50i G07 wins (5,33 s vs 6,48 s).
X7 xDrive50i G07 goes from 0 to 100 km/h in 5,33 seconds (calibrated simulation).
X7 xDrive50i G07: 462 hp, ratio 5,32 kg/hp. 125d F20LCI: 224 hp, ratio 6,61 kg/hp.
X7 xDrive50i G07: 250 km/h. 125d F20LCI: 240 km/h.