Over 0–100 km/h, 430i G22 wins (5,73 s vs 8,14 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | 430i G22 | 420i Convertible G22 | Gap |
|---|---|---|---|
| 0–100 km/h | 5.73 s | 8.14 s | 2.41 s · 430i G22 |
| 400 m standing start | 13.98 s | 15.97 s | 1.99 s · 430i G22 |
| 1,000 m standing start | 25.35 s | 28.97 s | 3.62 s · 430i G22 |
| Top speed (electronically limited) | 250 km/h | 236 km/h | 14 km/h · 430i G22 |
| Power-to-weight ratio | 5.99 kg/hp | 9.18 kg/hp | better ratio · 430i G22 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 430i G22 | 420i Convertible G22 |
|---|---|---|
| 0–30 km/h | 1.42 s | 1.81 s |
| 0–50 km/h | 2.36 s | 3.07 s |
| 0–80 km/h | 4.12 s | 5.69 s |
| 0–100 km/h | 5.73 s | 8.14 s |
| 0–120 km/h | 7.73 s | 11.24 s |
| 0–160 km/h | 13.25 s | 20.26 s |
| 0–200 km/h | 22.00 s | 36.93 s |
| 400 m standing start | 13.98 s | 15.97 s |
| 1,000 m standing start | 25.35 s | 28.97 s |
| Top speed limited | 250 km/h | 236 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 | 258 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 545 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 184 hp | 4 cyl |
| Torque | 300 Nm | |
| Weight | 1 690 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the 430i hits 100 km/h in 5.73 s versus 8.14 s for the 420i Convertible. At this point, the 430i leads by 2.41 s and sits roughly 19 m ahead.
At 200 metres, the 430i is doing 132 km/h against 115 km/h for the 420i Convertible. The gap is 1.29 s. The challenger starts to claw back ground.
At 400 metres standing start, the 430i crosses the line in 13.97 s versus 15.96 s. The 1.99 s gap represents roughly 77 m of track - a gap visible to the naked eye.
Past 400 metres, the 430i continues to build its lead. At 600 metres, it runs at 185 km/h versus 161 km/h. At 1,000 metres, the 430i finishes in 25.35 s versus 28.97 s, with a 3.62 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 236 km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the 430i is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 420i Convertible at 236 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 (5.99 kg/hp vs 9.18 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 13.10 seconds. The 2.41 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 430i G22 wins (5,73 s vs 8,14 s).
430i G22 goes from 0 to 100 km/h in 5,73 seconds (calibrated simulation).
430i G22: 258 hp, ratio 5,99 kg/hp. 420i Convertible G22: 184 hp, ratio 9,18 kg/hp.
430i G22: 250 km/h. 420i Convertible G22: 236 km/h.