Over 0–100 km/h, M340i xDrive G20 wins (4,32 s vs 4,96 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | M340i xDrive G20 | 840d xDrive G15 | Gap |
|---|---|---|---|
| 0–100 km/h | 4.32 s | 4.96 s | 0.64 s · M340i xDrive G20 |
| 400 m standing start | 12.47 s | 13.27 s | 0.80 s · M340i xDrive G20 |
| 1,000 m standing start | 22.65 s | 24.14 s | 1.49 s · M340i xDrive G20 |
| Top speed (electronically limited) | 250 km/h | 250 km/h | Same |
| Power-to-weight ratio | 4.77 kg/hp | 5.72 kg/hp | better ratio · M340i xDrive G20 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | M340i xDrive G20 | 840d xDrive G15 |
|---|---|---|
| 0–30 km/h | 1.04 s | 1.31 s |
| 0–50 km/h | 1.73 s | 2.10 s |
| 0–80 km/h | 3.05 s | 3.58 s |
| 0–100 km/h | 4.32 s | 4.96 s |
| 0–120 km/h | 5.76 s | 6.70 s |
| 0–160 km/h | 9.55 s | 11.43 s |
| 0–200 km/h | 15.10 s | 18.72 s |
| 400 m standing start | 12.47 s | 13.27 s |
| 1,000 m standing start | 22.65 s | 24.14 s |
| Top speed limited | 250 km/h | 250 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 | 382 hp | Pending |
| Torque | 500 Nm | |
| Weight | 1 823 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Eight-speed Steptronic transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 320 hp | Pending |
| Torque | 680 Nm | |
| Weight | 1 830 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the M340i xDrive hits 100 km/h in 4.32 s versus 4.96 s for the 840d xDrive. At this point, the M340i xDrive leads by 0.64 s and sits roughly 9 m ahead.
At 200 metres, the M340i xDrive is doing 147 km/h against 139 km/h for the 840d xDrive. The gap is 0.53 s. The challenger starts to claw back ground.
At 400 metres standing start, the M340i xDrive crosses the line in 12.46 s versus 13.26 s. The 0.80 s gap represents roughly 38 m of track - a gap visible to the naked eye.
Past 400 metres, the M340i xDrive continues to build its lead. At 600 metres, it runs at 206 km/h versus 193 km/h. At 1,000 metres, the M340i xDrive finishes in 22.65 s versus 24.13 s, with a 1.49 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 M340i xDrive and the 840d xDrive 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 (4.77 kg/hp vs 5.72 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 7.70 seconds. The 0.64 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, M340i xDrive G20 wins (4,32 s vs 4,96 s).
M340i xDrive G20 goes from 0 to 100 km/h in 4,32 seconds (calibrated simulation).
M340i xDrive G20: 382 hp, ratio 4,77 kg/hp. 840d xDrive G15: 320 hp, ratio 5,72 kg/hp.
M340i xDrive G20: 250 km/h. 840d xDrive G15: 250 km/h.