Sur 0–100 km/h, 120d F20LCI gagne (7,15 s vs 7,75 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.
| 120d F20LCI | 420d Convertible G22 | |
|---|---|---|
| 0–100 km/h | 7,15 s−0,60 s | 7,75 s |
| 400 m standing start | 15,30 s−0,34 s | 15,64 s |
| 1,000 m standing start | 27,54 s−1,15 s | 28,69 s |
| Top speed (electronically limited) | 228 km/h | 236 km/h−8 km/h |
| Power-to-weight ratio | 7,45 kg/hpbetter ratio | 9,34 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 | 120d F20LCI | 420d Convertible G22 |
|---|---|---|
| 0–30 km/h | 2,05 s | 1,52 s |
| 0–50 km/h | 3,27 s | 2,64 s |
| 0–80 km/h | 5,29 s | 5,29 s |
| 0–100 km/h | 7,15 s | 7,75 s |
| 0–120 km/h | 9,55 s | 10,87 s |
| 0–160 km/h | 16,63 s | 20,11 s |
| 0–200 km/h | 30,38 s | 37,54 s |
| 400 m standing start | 15,30 s | 15,64 s |
| 1,000 m standing start | 27,54 s | 28,69 s |
| Top speed | 228 km/h | 236 km/h |
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 | 1 415 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 6-speed manual (8-speed Steptronic) |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 775 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the Bmw 120d hits 100 km/h in 7.15 s versus 7.75 s for the Bmw 420d Convertible. Despite the faster sprint time, the Bmw 420d Convertible is 8 m further along the track at this moment: stronger low-speed acceleration offsets a slower run beyond 100 km/h.
At 200 metres, the Bmw 420d Convertible is doing 116 km/h against 124 km/h for the Bmw 120d. The gap is 0.06 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw 120d crosses the line in 15.30 s versus 15.64 s. The 0.34 s gap represents roughly 13 m of track - two to three car lengths.
Past 400 metres, the Bmw 120d continues to build its lead. At 600 metres, it runs at 172 km/h versus 161 km/h. At 1,000 metres, the Bmw 120d finishes in 27.53 s versus 28.69 s, with a 1.16 s lead. Both vehicles have similar top speeds (228 vs 236 km/h), preventing any comeback.
Both rivals are electronically governed, but not at the same level: the Bmw 120d is capped at 228 km/h, the Bmw 420d 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 (7.45 kg/hp vs 9.34 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 0.60 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, 120d F20LCI gagne (7,15 s vs 7,75 s).
120d F20LCI passe de 0 à 100 km/h en 7,15 secondes (simulation calibrée).
120d F20LCI : 190 hp, ratio 7,45 kg/hp. 420d Convertible G22 : 190 hp, ratio 9,34 kg/hp.
120d F20LCI : 228 km/h. 420d Convertible G22 : 236 km/h.