Over 0–100 km/h, 420i xDrive G22 wins (7,74 s vs 8,00 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | S60 B4 | 420i xDrive G22 | Gap |
|---|---|---|---|
| 0–100 km/h | 8.00 s | 7.74 s | 0.26 s · 420i xDrive G22 |
| 400 m standing start | 15.82 s | 15.61 s | 0.21 s · 420i xDrive G22 |
| 1,000 m standing start | 28.88 s | 28.72 s | 0.16 s · 420i xDrive G22 |
| Top speed (electronically limited) | 180 km/h | 234 km/h | 54 km/h · 420i xDrive G22 |
| Power-to-weight ratio | 8.27 kg/hp | 8.64 kg/hp | better ratio · S60 B4 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | S60 B4 | 420i xDrive G22 |
|---|---|---|
| 0–30 km/h | 1.65 s | 1.38 s |
| 0–50 km/h | 2.85 s | 2.58 s |
| 0–80 km/h | 5.57 s | 5.26 s |
| 0–100 km/h | 8.00 s | 7.74 s |
| 0–120 km/h | 11.04 s | 10.94 s · tight gap |
| 0–160 km/h | 20.16 s · tight gap | 20.29 s |
| 0–200 km/h | - | 38.25 s |
| 400 m standing start | 15.82 s | 15.61 s |
| 1,000 m standing start | 28.88 s | 28.72 s |
| Top speed | 180 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 | 197 hp | Pending |
| Torque | 420 Nm | |
| Weight | 1 630 kg | manufacturer kerb weight |
| Drivetrain | Traction | |
| Gearbox | 8-speed Geartronic |
| 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 420i xDrive hits 100 km/h in 7.74 s versus 8.00 s for the S60 B4. At this point, the 420i xDrive leads by 0.26 s and sits roughly 7 m ahead.
At 200 metres, the 420i xDrive is doing 115 km/h against 115 km/h for the S60 B4. The gap is 0.24 s. The gap remains stable from the start.
At 400 metres standing start, the 420i xDrive crosses the line in 15.61 s versus 15.82 s. The 0.21 s gap represents roughly 8 m of track - barely a car length.
Past 400 metres, the gap narrows. The S60 B4 maxes out at 180 km/h while the 420i xDrive keeps accelerating towards 234 km/h. At 600 metres, the gap has dropped to 0.18 s.
At 1,000 metres, the 420i xDrive finishes in 28.71 s versus 28.87 s, with just 0.16 s to spare. The S60 B4 fails to fully close the launch gap.
The 420i xDrive features all-wheel drive (AWD) against the S60 B4’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 S60 B4 is capped at 180 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 (8.27 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 13.00 seconds. The 0.26 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, 420i xDrive G22 wins (7,74 s vs 8,00 s).
S60 B4 goes from 0 to 100 km/h in 8,00 seconds (calibrated simulation).
S60 B4: 197 hp, ratio 8,27 kg/hp. 420i xDrive G22: 184 hp, ratio 8,64 kg/hp.
S60 B4: 180 km/h. 420i xDrive G22: 234 km/h.