Over 0–100 km/h, 128ti F40 wins (6,22 s vs 7,74 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | 128ti F40 | 420i xDrive G22 | Gap |
|---|---|---|---|
| 0–100 km/h | 6.22 s | 7.74 s | 1.52 s · 128ti F40 |
| 400 m standing start | 14.31 s | 15.61 s | 1.30 s · 128ti F40 |
| 1,000 m standing start | 25.38 s | 28.72 s | 3.34 s · 128ti F40 |
| Top speed (electronically limited) | 250 km/h | 234 km/h | 16 km/h · 128ti F40 |
| Power-to-weight ratio | 5.45 kg/hp | 8.64 kg/hp | better ratio · 128ti F40 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 128ti F40 | 420i xDrive G22 |
|---|---|---|
| 0–30 km/h | 1.88 s | 1.38 s |
| 0–50 km/h | 3.14 s | 2.58 s |
| 0–80 km/h | 4.86 s | 5.26 s |
| 0–100 km/h | 6.22 s | 7.74 s |
| 0–120 km/h | 7.95 s | 10.94 s |
| 0–160 km/h | 12.77 s | 20.29 s |
| 0–200 km/h | 20.72 s | 38.25 s |
| 400 m standing start | 14.31 s | 15.61 s |
| 1,000 m standing start | 25.38 s | 28.72 s |
| Top speed limited | 250 km/h | 234 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 | 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 | 184 hp | Pending |
| Torque | 300 Nm | |
| Weight | 1 590 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the 128ti hits 100 km/h in 6.22 s versus 7.74 s for the 420i xDrive. Despite the faster sprint time, the 420i xDrive is 4 m further along the track at this moment: stronger low-speed acceleration offsets a slower run beyond 100 km/h.
At 200 metres, the 128ti is doing 136 km/h against 115 km/h for the 420i xDrive. The gap is 0.42 s. The challenger starts to claw back ground.
At 400 metres standing start, the 128ti crosses the line in 14.31 s versus 15.61 s. The 1.30 s gap represents roughly 51 m of track - a gap visible to the naked eye.
Past 400 metres, the 128ti continues to build its lead. At 600 metres, it runs at 190 km/h versus 160 km/h. At 1,000 metres, the 128ti finishes in 25.37 s versus 28.71 s, with a 3.34 s lead.
The 420i xDrive features all-wheel drive (AWD) against the 128ti’s FWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.
Both rivals are electronically governed, but not at the same level: the 128ti is capped at 250 (i.e. 155 mph - industry threshold) km/h, the 420i xDrive at 238 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 (5.45 kg/hp vs 8.64 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.85 seconds. The 1.52 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 128ti F40 wins (6,22 s vs 7,74 s).
128ti F40 goes from 0 to 100 km/h in 6,22 seconds (calibrated simulation).
128ti F40: 265 hp, ratio 5,45 kg/hp. 420i xDrive G22: 184 hp, ratio 8,64 kg/hp.
128ti F40: 250 km/h. 420i xDrive G22: 234 km/h.