Over 0–100 km/h, 420d Convertible G22 wins (7,75 s vs 9,45 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
7.75 s
9.45 s
| Measure | 420d Convertible G22 | 218i Convertible F22 | Gap |
|---|---|---|---|
| 0–100 km/h | 7.75 s | 9.45 s | 1.70 s · 420d Convertible G22 |
| 400 m standing start | 15.64 s | 16.81 s | 1.17 s · 420d Convertible G22 |
| 1,000 m standing start | 28.69 s | 31.02 s | 2.33 s · 420d Convertible G22 |
| Top speed (electronically limited) | 236 km/h | 207 km/h | 29 km/h · 420d Convertible G22 |
| Power-to-weight ratio | 9.34 kg/hp | 11.03 kg/hp | better ratio · 420d Convertible G22 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 420d Convertible G22 | 218i Convertible F22 |
|---|---|---|
| 0–30 km/h | 1.52 s · tight gap | 1.53 s |
| 0–50 km/h | 2.64 s | 3.05 s |
| 0–80 km/h | 5.29 s | 6.46 s |
| 0–100 km/h | 7.75 s | 9.45 s |
| 0–120 km/h | 10.87 s | 13.93 s |
| 0–160 km/h | 20.11 s | 27.12 s |
| 0–200 km/h | 37.54 s | 61.53 s |
| 400 m standing start | 15.64 s | 16.81 s |
| 1,000 m standing start | 28.69 s | 31.02 s |
| Top speed | 236 km/h | 207 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 | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 775 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 136 hp | 3 cyl |
| Torque | 220 Nm | |
| Weight | 1 500 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 6-speed manual (8-speed Steptronic) |
Off the line, the 420d Convertible hits 100 km/h in 7.75 s versus 9.45 s for the 218i Convertible. At this point, the 420d Convertible leads by 1.70 s and sits roughly 12 m ahead.
At 200 metres, the 420d Convertible is doing 116 km/h against 107 km/h for the 218i Convertible. The gap is 0.68 s. The challenger starts to claw back ground.
At 400 metres standing start, the 420d Convertible crosses the line in 15.64 s versus 16.81 s. The 1.17 s gap represents roughly 42 m of track - a gap visible to the naked eye.
Past 400 metres, the 420d Convertible continues to build its lead. At 600 metres, it runs at 161 km/h versus 148 km/h. At 1,000 metres, the 420d Convertible finishes in 28.69 s versus 31.02 s, with a 2.33 s lead.
Both rivals are electronically governed, but not at the same level: the 420d Convertible is capped at 236 km/h, the 218i Convertible at 207 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 (9.34 kg/hp vs 11.03 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 16.40 seconds. The 1.70 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 420d Convertible G22 wins (7,75 s vs 9,45 s).
420d Convertible G22 goes from 0 to 100 km/h in 7,75 seconds (calibrated simulation).
420d Convertible G22: 190 hp, ratio 9,34 kg/hp. 218i Convertible F22: 136 hp, ratio 11,03 kg/hp.
420d Convertible G22: 236 km/h. 218i Convertible F22: 207 km/h.