Over 0–100 km/h, S8 and i4 M50 xDrive G26 are neck and neck (3,83 s vs 3,92 s, no significant gap).
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.
| S8 | i4 M50 xDrive G26 | |
|---|---|---|
| 0–100 km/h | 3,83 s−0,09 s | 3,92 s |
| 400 m standing start | 11,81 s−0,20 s | 12,01 s |
| 1,000 m standing start | 21,27 s−0,70 s | 21,97 s |
| Top speed (electronically limited) | 250 km/h+25 km/h | 225 km/h |
| Power-to-weight ratio | 3,89 kg/hpbetter ratio | 4,07 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 | S8 | i4 M50 xDrive G26 |
|---|---|---|
| 0–30 km/h | 1,07 s | 1,13 stight gap |
| 0–50 km/h | 1,78 s | 1,89 stight gap |
| 0–80 km/h | 2,88 s | 3,04 s |
| 0–100 km/h | 3,83 s | 3,92 stight gap |
| 0–120 km/h | 4,97 s | 5,04 stight gap |
| 0–160 km/h | 7,99 s | 8,35 s |
| 0–200 km/h | 12,24 s | 13,16 s |
| 400 m standing start | 11,81 s | 12,01 s |
| 1,000 m standing start | 21,27 s | 21,97 s |
| Top speed limited | 250 km/h | 225 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 571 hp | Pending |
| Torque | 800 Nm | |
| Weight | 2 220 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed tiptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 544 hp | Pending |
| Torque | 795 Nm | |
| Weight | 2 215 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | Automatic transmission, single-speed with fixed ratio |
Off the line, the S8 hits 100 km/h in 3.83 s versus 3.92 s for the Bmw i4 M50 xDrive. Despite lacking instant torque, 571 hp of power compensates. The 0.09 s gap is negligible: both vehicles are neck and neck.
At 200 metres, the S8 is doing 157 km/h against 155 km/h for the Bmw i4 M50 xDrive. The gap is 0.11 s. The gap remains stable from the start.
At 400 metres standing start, the S8 crosses the line in 11.81 s versus 12.01 s. The 0.20 s gap represents roughly 11 m of track - two to three car lengths.
Past 400 metres, the S8 continues to build its lead. At 600 metres, it runs at 222 km/h versus 216 km/h. At 1,000 metres, the S8 finishes in 21.26 s versus 21.97 s, with a 0.70 s lead.
Both rivals are electronically governed, but not at the same level: the S8 is capped at 250 (i.e. 155 mph - industry threshold) km/h, the Bmw i4 M50 xDrive at 225 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 5.72 seconds. The 0.09 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, S8 and i4 M50 xDrive G26 are neck and neck (3,83 s vs 3,92 s, no significant gap).
S8 goes from 0 to 100 km/h in 3,83 seconds (calibrated simulation).
S8: 571 hp, ratio 3,89 kg/hp. i4 M50 xDrive G26: 544 hp, ratio 4,07 kg/hp.
S8: 250 km/h. i4 M50 xDrive G26: 225 km/h.