Over 0–100 km/h, 120d xDrive F40 and 420d G22 are neck and neck (7,04 s vs 7,13 s, no significant gap).
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.
| 120d xDrive F40 | 420d G22 | |
|---|---|---|
| 0–100 km/h | 7,13 s | 7,04 s+0,09 s |
| 400 m standing start | 15,21 s | 15,11 s+0,10 s |
| 1,000 m standing start | 28,00 s | 27,78 s+0,22 s |
| Top speed (electronically limited) | 228 km/h | 240 km/h−12 km/h |
| Power-to-weight ratio | 7,97 kg/hpbetter ratio | 8,45 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 | 120d xDrive F40 | 420d G22 |
|---|---|---|
| 0–30 km/h | 1,50 s | 1,37 stight gap |
| 0–50 km/h | 2,54 s | 2,40 stight gap |
| 0–80 km/h | 4,93 s | 4,80 stight gap |
| 0–100 km/h | 7,13 s | 7,04 stight gap |
| 0–120 km/h | 9,98 s | 9,85 stight gap |
| 0–160 km/h | 18,51 s | 18,13 s |
| 0–200 km/h | 35,95 s | 33,30 s |
| 400 m standing start | 15,21 s | 15,11 stight gap |
| 1,000 m standing start | 28,00 s | 27,78 s |
| Top speed | 228 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 | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 515 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed Steptronic transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 605 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the Bmw 420d hits 100 km/h in 7.04 s versus 7.13 s for the Bmw 120d xDrive. The 0.09 s gap is negligible: both vehicles are neck and neck.
At 200 metres, the Bmw 420d is doing 119 km/h against 119 km/h for the Bmw 120d xDrive. The gap is 0.10 s. The gap remains stable from the start.
At 400 metres standing start, the Bmw 420d crosses the line in 15.10 s versus 15.21 s. The 0.11 s gap represents roughly 4 m of track - barely a car length.
Past 400 metres, the Bmw 420d continues to build its lead. At 600 metres, it runs at 166 km/h versus 164 km/h. At 1,000 metres, the Bmw 420d finishes in 27.77 s versus 27.99 s, with a 0.22 s lead. Both vehicles have similar top speeds (228 vs 240 km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the Bmw 120d xDrive is capped at 230 km/h, the Bmw 420d 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 (7.97 kg/hp vs 8.45 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.69 seconds. The 0.09 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 120d xDrive F40 and 420d G22 are neck and neck (7,04 s vs 7,13 s, no significant gap).
120d xDrive F40 goes from 0 to 100 km/h in 7,13 seconds (calibrated simulation).
120d xDrive F40: 190 hp, ratio 7,97 kg/hp. 420d G22: 190 hp, ratio 8,45 kg/hp.
120d xDrive F40: 228 km/h. 420d G22: 240 km/h.