Sur 0–100 km/h, 840i G15 gagne (5,14 s vs 7,56 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.
| 840i G15 | 520d G30 | |
|---|---|---|
| 0–100 km/h | 5,14 s−2,42 s | 7,56 s |
| 400 m standing start | 13,36 s−2,12 s | 15,48 s |
| 1,000 m standing start | 24,12 s−4,59 s | 28,71 s |
| Top speed (electronically limited) | 250 km/h+25 km/h | 225 km/h |
| Power-to-weight ratio | 5,20 kg/hpbetter ratio | 9,37 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 | 840i G15 | 520d G30 |
|---|---|---|
| 0–30 km/h | 1,37 s | 1,25 stight gap |
| 0–50 km/h | 2,29 s | 2,41 stight gap |
| 0–80 km/h | 3,77 s | 5,04 s |
| 0–100 km/h | 5,14 s | 7,56 s |
| 0–120 km/h | 6,79 s | 10,87 s |
| 0–160 km/h | 11,35 s | 20,60 s |
| 0–200 km/h | 18,29 s | 41,41 s |
| 400 m standing start | 13,36 s | 15,48 s |
| 1,000 m standing start | 24,12 s | 28,71 s |
| Top speed limited | 250 km/h | 225 km/h |
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 | 1 730 kg | manufacturer kerb weight |
| Drivetrain | 840i | |
| Gearbox | 8-speed Steptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 780 kg | manufacturer kerb weight |
| Drivetrain | Propulsion | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the Bmw 840i hits 100 km/h in 5.14 s versus 7.56 s for the Bmw 520d. At this point, the Bmw 840i leads by 2.42 s and sits roughly 8 m ahead.
At 200 metres, the Bmw 840i is doing 140 km/h against 115 km/h for the Bmw 520d. The gap is 1.11 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw 840i crosses the line in 13.35 s versus 15.48 s. The 2.13 s gap represents roughly 81 m of track — a gap visible to the naked eye.
Past 400 metres, the Bmw 840i continues to build its lead. At 600 metres, it runs at 195 km/h versus 159 km/h. At 1,000 metres, the Bmw 840i finishes in 24.12 s versus 28.71 s, with a 4.59 s lead.
Both rivals are electronically governed, but not at the same level: the Bmw 840i is capped at 250 (i.e. 155 mph — industry threshold) km/h, the Bmw 520d at 225 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 (5.20 kg/hp vs 9.37 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.82 seconds. The 2.42 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.
Sur 0–100 km/h, 840i G15 gagne (5,14 s vs 7,56 s).
840i G15 passe de 0 à 100 km/h en 5,14 secondes (simulation calibrée).
840i G15 : 333 hp, ratio 5,20 kg/hp. 520d G30 : 190 hp, ratio 9,37 kg/hp.
840i G15 : 250 km/h. 520d G30 : 225 km/h.