Over 0–100 km/h, S90 B5 AWD wins (6,58 s vs 7,31 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | S90 B5 AWD | 520d xDrive G30 | Gap |
|---|---|---|---|
| 0–100 km/h | 6.58 s | 7.31 s | 0.73 s · S90 B5 AWD |
| 400 m standing start | 14.76 s | 15.32 s | 0.56 s · S90 B5 AWD |
| 1,000 m standing start | 27.11 s | 28.30 s | 1.19 s · S90 B5 AWD |
| Top speed (electronically limited) | 180 km/h | 232 km/h | 52 km/h · 520d xDrive G30 |
| Power-to-weight ratio | 7.18 kg/hp | 8.97 kg/hp | better ratio · S90 B5 AWD |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | S90 B5 AWD | 520d xDrive G30 |
|---|---|---|
| 0–30 km/h | 1.70 s | 1.31 s |
| 0–50 km/h | 2.57 s | 2.42 s · tight gap |
| 0–80 km/h | 4.64 s | 4.92 s |
| 0–100 km/h | 6.58 s | 7.31 s |
| 0–120 km/h | 8.89 s | 10.44 s |
| 0–160 km/h | 15.63 s | 19.43 s |
| 0–200 km/h | - | 37.21 s |
| 400 m standing start | 14.76 s | 15.32 s |
| 1,000 m standing start | 27.11 s | 28.30 s |
| Top speed | 180 km/h | 232 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 | 250 hp | Pending |
| Torque | 350 Nm | |
| Weight | 1 795 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed Geartronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 705 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | 8-speed Steptronic |
Off the line, the S90 B5 AWD hits 100 km/h in 6.58 s versus 7.31 s for the 520d xDrive. Despite the faster sprint time, the 520d xDrive is 2 m further along the track at this moment: stronger low-speed acceleration offsets a slower run beyond 100 km/h.
At 200 metres, the S90 B5 AWD is doing 125 km/h against 116 km/h for the 520d xDrive. The gap is 0.16 s. The challenger starts to claw back ground.
At 400 metres standing start, the S90 B5 AWD crosses the line in 14.75 s versus 15.32 s. The 0.56 s gap represents roughly 22 m of track - two to three car lengths.
Past 400 metres, the S90 B5 AWD continues to build its lead. At 600 metres, it runs at 176 km/h versus 162 km/h. At 1,000 metres, the S90 B5 AWD finishes in 27.11 s versus 28.30 s, with a 1.19 s lead. Despite a higher top speed (232 km/h), the 520d xDrive never recovers its launch deficit.
Both rivals are electronically governed, but not at the same level: the S90 B5 AWD is capped at 180 km/h, the 520d xDrive at 232 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 (7.18 kg/hp vs 8.97 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.25 seconds. The 0.73 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Swap one of the two models to explore an equivalent duel in the same segment.
Over 0–100 km/h, S90 B5 AWD wins (6,58 s vs 7,31 s).
S90 B5 AWD goes from 0 to 100 km/h in 6,58 seconds (calibrated simulation).
S90 B5 AWD: 250 hp, ratio 7,18 kg/hp. 520d xDrive G30: 190 hp, ratio 8,97 kg/hp.
S90 B5 AWD: 180 km/h. 520d xDrive G30: 232 km/h.