Over 0–100 km/h, M5 CS F90 wins (3,03 s vs 3,66 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | RS Q8 SUV | M5 CS F90 | Gap |
|---|---|---|---|
| 0–100 km/h | 3.66 s | 3.03 s | 0.63 s · M5 CS F90 |
| 400 m standing start | 11.59 s | 10.82 s | 0.77 s · M5 CS F90 |
| 1,000 m standing start | 21.01 s | 19.94 s | 1.07 s · M5 CS F90 |
| Top speed (electronically limited) | 250 km/h | 295 km/h | 45 km/h · M5 CS F90 |
| Power-to-weight ratio | 3.55 kg/hp | 2.87 kg/hp | better ratio · M5 CS F90 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | RS Q8 SUV | M5 CS F90 |
|---|---|---|
| 0–30 km/h | 1.04 s | 0.91 s · tight gap |
| 0–50 km/h | 1.73 s | 1.51 s |
| 0–80 km/h | 2.76 s | 2.37 s |
| 0–100 km/h | 3.66 s | 3.03 s |
| 0–120 km/h | 4.71 s | 3.74 s |
| 0–160 km/h | 7.55 s | 6.21 s |
| 0–200 km/h | 11.75 s | 9.97 s |
| 400 m standing start | 11.59 s | 10.82 s |
| 1,000 m standing start | 21.01 s | 19.94 s |
| Top speed limited | 250 km/h | 295 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 | 640 hp | Pending |
| Torque | 850 Nm | |
| Weight | 2 275 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed tiptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 635 hp | Pending |
| Torque | 750 Nm | |
| Weight | 1 825 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed M Steptronic transmission with Drivelogic, transmission oil cooling |
Off the line, the M5 CS hits 100 km/h in 3.03 s versus 3.66 s for the RS Q8 SUV. At this point, the M5 CS leads by 0.63 s and sits roughly 6 m ahead.
At 200 metres, the M5 CS is doing 170 km/h against 161 km/h for the RS Q8 SUV. The gap is 0.58 s. The gap remains stable from the start.
At 400 metres standing start, the M5 CS crosses the line in 10.81 s versus 11.58 s. The 0.77 s gap represents roughly 42 m of track - a gap visible to the naked eye.
Past 400 metres, the M5 CS continues to build its lead. At 600 metres, it runs at 231 km/h versus 223 km/h. At 1,000 metres, the M5 CS finishes in 19.94 s versus 21.01 s, with a 1.07 s lead.
Both rivals are electronically governed, but not at the same level: the RS Q8 SUV is capped at 250 (i.e. 155 mph - industry threshold) km/h, the M5 CS at 305 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 (3.55 kg/hp vs 2.87 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 5.30 seconds. The 0.63 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, M5 CS F90 wins (3,03 s vs 3,66 s).
RS Q8 SUV goes from 0 to 100 km/h in 3,66 seconds (calibrated simulation).
RS Q8 SUV: 640 hp, ratio 3,55 kg/hp. M5 CS F90: 635 hp, ratio 2,87 kg/hp.
RS Q8 SUV: 250 km/h. M5 CS F90: 295 km/h.