Over 0–100 km/h, X7 xDrive50i G07 wins (5,33 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.
| X7 xDrive50i G07 | 128ti F40 | |
|---|---|---|
| 0–100 km/h | 5,33 s−0,94 s | 6,27 s |
| 400 m standing start | 13,57 s−0,87 s | 14,44 s |
| 1,000 m standing start | 24,64 s−1,23 s | 25,87 s |
| Top speed (electronically limited) | 250 km/h | 250 km/h |
| Power-to-weight ratio | 5,32 kg/hpbetter ratio | 5,45 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 | X7 xDrive50i G07 | 128ti F40 |
|---|---|---|
| 0–30 km/h | 1,39 s | 1,81 s |
| 0–50 km/h | 2,29 s | 3,01 s |
| 0–80 km/h | 3,92 s | 4,76 s |
| 0–100 km/h | 5,33 s | 6,27 s |
| 0–120 km/h | 7,08 s | 8,20 s |
| 0–160 km/h | 12,00 s | 13,63 s |
| 0–200 km/h | 19,96 s | 22,97 s |
| 400 m standing start | 13,57 s | 14,44 s |
| 1,000 m standing start | 24,64 s | 25,87 s |
| Top speed limited | 250 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 | 462 hp | 8 cyl |
| Torque | 650 Nm | |
| Weight | 2 460 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Eight-speed Steptronic transmission |
| 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 X7 xDrive50i hits 100 km/h in 5.33 s versus 6.27 s for the 128ti. At this point, the X7 xDrive50i leads by 0.94 s and sits roughly 15 m ahead.
At 200 metres, the X7 xDrive50i is doing 137 km/h against 132 km/h for the 128ti. The gap is 0.72 s. The challenger starts to claw back ground.
At 400 metres standing start, the X7 xDrive50i crosses the line in 13.57 s versus 14.44 s. The 0.87 s gap represents roughly 39 m of track - a gap visible to the naked eye.
Past 400 metres, the X7 xDrive50i continues to build its lead. At 600 metres, it runs at 190 km/h versus 184 km/h. At 1,000 metres, the X7 xDrive50i finishes in 24.64 s versus 25.86 s, with a 1.23 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 250 (i.e. 155 mph - industry threshold) km/h), preventing any comeback.
Both rivals share the same electronic speed cap: the X7 xDrive50i and the 128ti 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 (5.32 kg/hp vs 5.45 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.33 seconds. The 0.94 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, X7 xDrive50i G07 wins (5,33 s vs 6,27 s).
X7 xDrive50i G07 goes from 0 to 100 km/h in 5,33 seconds (calibrated simulation).
X7 xDrive50i G07: 462 hp, ratio 5,32 kg/hp. 128ti F40: 265 hp, ratio 5,45 kg/hp.
X7 xDrive50i G07: 250 km/h. 128ti F40: 250 km/h.