Over 0–100 km/h, Boxster S 987 wins (5,17 s vs 8,14 s).
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.
| Boxster S 987 | 420i Convertible G22 | |
|---|---|---|
| 0–100 km/h | 5,17 s−2,98 s | 8,14 s |
| 400 m standing start | 13,32 s−2,65 s | 15,97 s |
| 1,000 m standing start | 23,99 s−4,98 s | 28,97 s |
| Top speed (electronically limited) | 252 km/h+16 km/h | 236 km/h |
| Power-to-weight ratio | 4,37 kg/hpbetter ratio | 9,18 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 | Boxster S 987 | 420i Convertible G22 |
|---|---|---|
| 0–30 km/h | 1,35 s | 1,81 s |
| 0–50 km/h | 2,26 s | 3,07 s |
| 0–80 km/h | 3,91 s | 5,69 s |
| 0–100 km/h | 5,17 s | 8,14 s |
| 0–120 km/h | 6,84 s | 11,24 s |
| 0–160 km/h | 11,14 s | 20,26 s |
| 0–200 km/h | 17,83 s | 36,93 s |
| 400 m standing start | 13,32 s | 15,97 s |
| 1,000 m standing start | 23,99 s | 28,97 s |
| Top speed | 252 km/h | 236 km/h |
Manufacturer technical specifications. The power-to-weight ratio is the key physical factor in a drag race.
| Characteristic | Value | Detail |
|---|---|---|
| Power | 310 hp | B6 |
| Torque | 360 Nm | |
| Weight | 1 355 kg | manufacturer kerb weight |
| Drivetrain | Propulsion | |
| Gearbox | Unknown |
| 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 Boxster S hits 100 km/h in 5.17 s versus 8.14 s for the Bmw 420i Convertible. At this point, the Boxster S leads by 2.98 s and sits roughly 19 m ahead.
At 200 metres, the Boxster S is doing 141 km/h against 115 km/h for the Bmw 420i Convertible. The gap is 1.63 s. The challenger starts to claw back ground.
At 400 metres standing start, the Boxster S crosses the line in 13.32 s versus 15.96 s. The 2.64 s gap represents roughly 101 m of track - a gap visible to the naked eye.
Past 400 metres, the Boxster S continues to build its lead. At 600 metres, it runs at 197 km/h versus 161 km/h. At 1,000 metres, the Boxster S finishes in 23.98 s versus 28.97 s, with a 4.98 s lead.
Both rivals are electronically governed, but not at the same level: the Boxster S is capped at 274 km/h, the Bmw 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 (4.37 kg/hp vs 9.18 kg/hp) and transmission (Unknown vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 13.10 seconds. The 2.98 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, Boxster S 987 wins (5,17 s vs 8,14 s).
Boxster S 987 goes from 0 to 100 km/h in 5,17 seconds (calibrated simulation).
Boxster S 987: 310 hp, ratio 4,37 kg/hp. 420i Convertible G22: 184 hp, ratio 9,18 kg/hp.
Boxster S 987: 252 km/h. 420i Convertible G22: 236 km/h.