Sur 0–100 km/h, 230i Convertible F44 gagne (5,84 s vs 6,22 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.
| 128ti F40 | 230i Convertible F44 | |
|---|---|---|
| 0–100 km/h | 6,22 s | 5,84 s+0,38 s |
| 400 m standing start | 14,31 s | 14,08 s+0,23 s |
| 1,000 m standing start | 25,38 s−0,43 s | 25,81 s |
| Top speed (electronically limited) | 250 km/h+1 km/h | 249 km/h |
| Power-to-weight ratio | 5,45 kg/hpbetter ratio | 6,39 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 | 128ti F40 | 230i Convertible F44 |
|---|---|---|
| 0–30 km/h | 1,88 s | 1,30 s |
| 0–50 km/h | 3,14 s | 2,18 s |
| 0–80 km/h | 4,86 s | 4,07 s |
| 0–100 km/h | 6,22 s | 5,84 s |
| 0–120 km/h | 7,95 s | 7,98 stight gap |
| 0–160 km/h | 12,77 s | 14,06 s |
| 0–200 km/h | 20,72 s | 24,59 s |
| 400 m standing start | 14,31 s | 14,08 s |
| 1,000 m standing start | 25,38 s | 25,81 s |
| Top speed limited | 250 km/h | 249 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 265 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 445 kg | manufacturer kerb weight |
| Drivetrain | Traction | |
| Gearbox | Eight-speed Steptronic Sport transmission |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 252 hp | 4 cyl |
| Torque | 350 Nm | |
| Weight | 1 610 kg | manufacturer kerb weight |
| Drivetrain | 230i Convertible | |
| Gearbox | 8-speed Steptronic Sport transmission |
Off the line, the Bmw 230i Convertible hits 100 km/h in 5.84 s versus 6.22 s for the Bmw 128ti. At this point, the Bmw 230i Convertible leads by 0.38 s and sits roughly 18 m ahead.
At 200 metres, the Bmw 230i Convertible is doing 129 km/h against 136 km/h for the Bmw 128ti. The gap is 0.49 s. The gap remains stable from the start.
At 400 metres standing start, the Bmw 230i Convertible crosses the line in 14.08 s versus 14.31 s. The 0.23 s gap represents roughly 11 m of track — two to three car lengths.
Past 400 metres, the situation changes. Past 400 metres, both rivals hit the same electronic ceiling at 249 (i.e. 155 mph — industry threshold) km/h. Neither can claw back ground through top speed — the outcome hinges on the acceleration curve between 100 and 249 (i.e. 155 mph — industry threshold) km/h.
At 1,000 metres, the Bmw 128ti finishes in 25.37 s versus 25.81 s. The 0.43 s delta shows an extremely tight race.
On paper, the Bmw 128ti combines 265 hp, 400 Nm and 1,445 kg — a clear theoretical edge over the Bmw 230i Convertible. Yet the Bmw 230i Convertible launches quicker. At standstill, both motors deliver peak torque from 0 rpm: the decisive factor is no longer raw power, but available grip. If the Bmw 230i Convertible has a better traction coefficient (tyres, weight distribution, traction control calibration), it puts down more force despite inferior specs — exactly what the simulation reflects, calibrated on manufacturer 0-100 km/h times.
Both rivals share the same electronic speed cap: the Bmw 128ti and the Bmw 230i Convertible are governed to 250 (i.e. 155 mph — industry threshold) km/h. At that speed, standard-fit tyres approach their safety threshold — an industrial ceiling common to most electric vehicles in this segment. Neither car shows its true aerodynamic potential in this duel.
With two combustion powertrains, the difference comes down to power-to-weight ratio (5.45 kg/hp vs 6.39 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.24 seconds. The 0.38 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, 230i Convertible F44 gagne (5,84 s vs 6,22 s).
128ti F40 passe de 0 à 100 km/h en 6,22 secondes (simulation calibrée).
128ti F40 : 265 hp, ratio 5,45 kg/hp. 230i Convertible F44 : 252 hp, ratio 6,39 kg/hp.
128ti F40 : 250 km/h. 230i Convertible F44 : 249 km/h.