Over 0–100 km/h, 840i Convertible G15 wins (5,57 s vs 8,35 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | 840i Convertible G15 | 218d F22 | Gap |
|---|---|---|---|
| 0–100 km/h | 5.57 s | 8.35 s | 2.78 s · 840i Convertible G15 |
| 400 m standing start | 13.79 s | 16.18 s | 2.39 s · 840i Convertible G15 |
| 1,000 m standing start | 24.82 s | 29.46 s | 4.64 s · 840i Convertible G15 |
| Top speed (electronically limited) | 250 km/h | 213 km/h | 37 km/h · 840i Convertible G15 |
| Power-to-weight ratio | 5.53 kg/hp | 9.47 kg/hp | better ratio · 840i Convertible G15 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 840i Convertible G15 | 218d F22 |
|---|---|---|
| 0–30 km/h | 1.54 s | 1.90 s |
| 0–50 km/h | 2.50 s | 3.16 s |
| 0–80 km/h | 4.11 s | 5.94 s |
| 0–100 km/h | 5.57 s | 8.35 s |
| 0–120 km/h | 7.39 s | 11.66 s |
| 0–160 km/h | 12.34 s | 21.48 s |
| 0–200 km/h | 19.98 s | 44.86 s |
| 400 m standing start | 13.79 s | 16.18 s |
| 1,000 m standing start | 24.82 s | 29.46 s |
| Top speed limited | 250 km/h | 213 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 | 1 840 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 150 hp | 4 cyl |
| Torque | 320 Nm | |
| Weight | 1 420 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 6-speed manual (8-speed Steptronic) |
Off the line, the 840i Convertible hits 100 km/h in 5.57 s versus 8.35 s for the 218d. At this point, the 840i Convertible leads by 2.78 s and sits roughly 18 m ahead.
At 200 metres, the 840i Convertible is doing 136 km/h against 114 km/h for the 218d. The gap is 1.47 s. The challenger starts to claw back ground.
At 400 metres standing start, the 840i Convertible crosses the line in 13.79 s versus 16.17 s. The 2.38 s gap represents roughly 90 m of track - a gap visible to the naked eye.
Past 400 metres, the 840i Convertible continues to build its lead. At 600 metres, it runs at 190 km/h versus 158 km/h. At 1,000 metres, the 840i Convertible finishes in 24.82 s versus 29.45 s, with a 4.63 s lead.
Both rivals are electronically governed, but not at the same level: the 840i Convertible is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 218d at 213 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 (5.53 kg/hp vs 9.47 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 13.58 seconds. The 2.78 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 840i Convertible G15 wins (5,57 s vs 8,35 s).
840i Convertible G15 goes from 0 to 100 km/h in 5,57 seconds (calibrated simulation).
840i Convertible G15: 333 hp, ratio 5,53 kg/hp. 218d F22: 150 hp, ratio 9,47 kg/hp.
840i Convertible G15: 250 km/h. 218d F22: 213 km/h.