Over 0–100 km/h, 520d Touring G30 wins (7,47 s vs 8,14 s).
Simulated drag race 0 → 1,000 m in real time. Synchronised speed counters and stopwatch. Physics calibration on 7 manufacturer measurements.
| Measure | 520d Touring G30 | 420i Convertible G22 | Gap |
|---|---|---|---|
| 0–100 km/h | 7.47 s | 8.14 s | 0.67 s · 520d Touring G30 |
| 400 m standing start | 15.43 s | 15.97 s | 0.54 s · 520d Touring G30 |
| 1,000 m standing start | 28.60 s | 28.97 s | 0.37 s · 520d Touring G30 |
| Top speed (electronically limited) | 225 km/h | 236 km/h | 11 km/h · 420i Convertible G22 |
| Power-to-weight ratio | 9.16 kg/hp | 9.18 kg/hp | better ratio · 520d Touring G30 |
Standing-start drag race, calibrated on manufacturer splits. The gap shows at each stage.
| Stage | 520d Touring G30 | 420i Convertible G22 |
|---|---|---|
| 0–30 km/h | 1.25 s | 1.81 s |
| 0–50 km/h | 2.36 s | 3.07 s |
| 0–80 km/h | 5.03 s | 5.69 s |
| 0–100 km/h | 7.47 s | 8.14 s |
| 0–120 km/h | 10.66 s | 11.24 s |
| 0–160 km/h | 20.31 s | 20.26 s · tight gap |
| 0–200 km/h | 40.23 s | 36.93 s |
| 400 m standing start | 15.43 s | 15.97 s |
| 1,000 m standing start | 28.60 s | 28.97 s |
| Top speed | 225 km/h | 236 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 | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 740 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | 8-speed Steptronic |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 184 hp | 4 cyl |
| Torque | 300 Nm | |
| Weight | 1 690 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the 520d Touring hits 100 km/h in 7.47 s versus 8.14 s for the 420i Convertible. At this point, the 520d Touring leads by 0.67 s and sits roughly 15 m ahead.
At 200 metres, the 520d Touring is doing 115 km/h against 115 km/h for the 420i Convertible. The gap is 0.56 s. The challenger starts to claw back ground.
At 400 metres standing start, the 520d Touring crosses the line in 15.42 s versus 15.96 s. The 0.54 s gap represents roughly 21 m of track - two to three car lengths.
Past 400 metres, the gap narrows. The 520d Touring maxes out at 225 km/h while the 420i Convertible keeps accelerating towards 236 km/h. At 600 metres, the gap has dropped to 0.49 s.
At 1,000 metres, the 520d Touring finishes in 28.59 s versus 28.97 s, with just 0.37 s to spare. The 420i Convertible fails to fully close the launch gap.
Both rivals are electronically governed, but not at the same level: the 520d Touring is capped at 225 km/h, the 420i Convertible at 236 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 (9.16 kg/hp vs 9.18 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 13.10 seconds. The 0.67 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, 520d Touring G30 wins (7,47 s vs 8,14 s).
520d Touring G30 goes from 0 to 100 km/h in 7,47 seconds (calibrated simulation).
520d Touring G30: 190 hp, ratio 9,16 kg/hp. 420i Convertible G22: 184 hp, ratio 9,18 kg/hp.
520d Touring G30: 225 km/h. 420i Convertible G22: 236 km/h.