Over 0–100 km/h, i5 xDrive40 G60 wins (5,30 s vs 6,27 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.
| i5 xDrive40 G60 | 128ti F40 | |
|---|---|---|
| 0–100 km/h | 5,30 s−0,97 s | 6,27 s |
| 400 m standing start | 13,59 s−0,85 s | 14,44 s |
| 1,000 m standing start | 24,58 s−1,29 s | 25,87 s |
| Top speed (electronically limited) | 215 km/h | 250 km/h−35 km/h |
| Power-to-weight ratio | 5,79 kg/hp | 5,45 kg/hpbetter ratio |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
Simulated performance at each stage. Winner in green.
| Palier | i5 xDrive40 G60 | 128ti F40 |
|---|---|---|
| 0–30 km/h | 1,43 s | 1,81 s |
| 0–50 km/h | 2,39 s | 3,01 s |
| 0–80 km/h | 3,92 s | 4,76 s |
| 0–100 km/h | 5,30 s | 6,27 s |
| 0–120 km/h | 7,04 s | 8,20 s |
| 0–160 km/h | 12,04 s | 13,63 s |
| 0–200 km/h | 19,54 s | 22,97 s |
| 400 m standing start | 13,59 s | 14,44 s |
| 1,000 m standing start | 24,58 s | 25,87 s |
| Top speed limited | 215 km/h | 250 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 394 hp | Pending |
| Torque | 590 Nm | |
| Weight | 2 280 kg | manufacturer kerb weight |
| Drivetrain | Propulsion | |
| Gearbox | Automatic transmission, single-stage with fixed ratio |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 265 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 445 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic Sport transmission |
Off the line, the Bmw i5 xDrive40 hits 100 km/h in 5.30 s versus 6.27 s for the Bmw 128ti. The instant torque of 590 Nm from the electric motor makes the difference. At this point, the Bmw i5 xDrive40 leads by 0.97 s and sits roughly 14 m ahead.
At 200 metres, the Bmw i5 xDrive40 is doing 137 km/h against 132 km/h for the Bmw 128ti. The gap is 0.70 s. The challenger starts to claw back ground.
At 400 metres standing start, the Bmw i5 xDrive40 crosses the line in 13.59 s versus 14.44 s. The 0.85 s gap represents roughly 38 m of track - a gap visible to the naked eye.
Past 400 metres, the Bmw i5 xDrive40 continues to build its lead. At 600 metres, it runs at 191 km/h versus 184 km/h. At 1,000 metres, the Bmw i5 xDrive40 finishes in 24.58 s versus 25.86 s, with a 1.29 s lead. Despite a higher top speed (250 (i.e. 155 mph - industry threshold) km/h), the Bmw 128ti never recovers its launch deficit.
Both rivals are electronically governed, but not at the same level: the Bmw i5 xDrive40 is capped at 215 km/h, the Bmw 128ti at 250 (i.e. 155 mph - industry threshold) 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.
Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.33 seconds. The 0.97 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, i5 xDrive40 G60 wins (5,30 s vs 6,27 s).
i5 xDrive40 G60 goes from 0 to 100 km/h in 5,30 seconds (calibrated simulation).
i5 xDrive40 G60: 394 hp, ratio 5,79 kg/hp. 128ti F40: 265 hp, ratio 5,45 kg/hp.
i5 xDrive40 G60: 215 km/h. 128ti F40: 250 km/h.