Over 0–100 km/h, 840i xDrive G15 wins (4,82 s vs 7,38 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | 840i xDrive G15 | 120d F40 | Gap |
|---|---|---|---|
| 0–100 km/h | 4.82 s | 7.38 s | 2.56 s · 840i xDrive G15 |
| 400 m standing start | 13.06 s | 15.41 s | 2.35 s · 840i xDrive G15 |
| 1,000 m standing start | 23.73 s | 27.90 s | 4.17 s · 840i xDrive G15 |
| Top speed (electronically limited) | 250 km/h | 231 km/h | 19 km/h · 840i xDrive G15 |
| Power-to-weight ratio | 5.39 kg/hp | 7.63 kg/hp | better ratio · 840i xDrive G15 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 840i xDrive G15 | 120d F40 |
|---|---|---|
| 0–30 km/h | 1.23 s | 1.87 s |
| 0–50 km/h | 2.05 s | 3.04 s |
| 0–80 km/h | 3.49 s | 5.29 s |
| 0–100 km/h | 4.82 s | 7.38 s |
| 0–120 km/h | 6.43 s | 9.97 s |
| 0–160 km/h | 10.86 s | 17.66 s |
| 0–200 km/h | 17.56 s | 32.84 s |
| 400 m standing start | 13.06 s | 15.41 s |
| 1,000 m standing start | 23.73 s | 27.90 s |
| Top speed limited | 250 km/h | 231 km/h |
Physics model calibrated on manufacturer splits. The limited top speed is not the real aerodynamic top speed of the vehicles.
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 333 hp | 6 cyl |
| Torque | 500 Nm | |
| Weight | 1 795 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed Steptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | Pending |
| Torque | 400 Nm | |
| Weight | 1 450 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic transmission |
Off the line, the 840i xDrive hits 100 km/h in 4.82 s versus 7.38 s for the 120d. At this point, the 840i xDrive leads by 2.56 s and sits roughly 22 m ahead.
At 200 metres, the 840i xDrive is doing 141 km/h against 121 km/h for the 120d. The gap is 1.61 s. The challenger starts to claw back ground.
At 400 metres standing start, the 840i xDrive crosses the line in 13.06 s versus 15.41 s. The 2.35 s gap represents roughly 94 m of track - a gap visible to the naked eye.
Past 400 metres, the 840i xDrive continues to build its lead. At 600 metres, it runs at 197 km/h versus 168 km/h. At 1,000 metres, the 840i xDrive finishes in 23.73 s versus 27.90 s, with a 4.17 s lead.
Both rivals are electronically governed, but not at the same level: the 840i xDrive is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 120d at 231 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 (5.39 kg/hp vs 7.63 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.54 seconds. The 2.56 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 840i xDrive G15 wins (4,82 s vs 7,38 s).
840i xDrive G15 goes from 0 to 100 km/h in 4,82 seconds (calibrated simulation).
840i xDrive G15: 333 hp, ratio 5,39 kg/hp. 120d F40: 190 hp, ratio 7,63 kg/hp.
840i xDrive G15: 250 km/h. 120d F40: 231 km/h.