Over 0–100 km/h, 911 Carrera 4 991.2 wins (4,16 s vs 7,75 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.
| 911 Carrera 4 991.2 | 420d Convertible G22 | |
|---|---|---|
| 0–100 km/h | 4,16 s−3,59 s | 7,75 s |
| 400 m standing start | 12,19 s−3,45 s | 15,64 s |
| 1,000 m standing start | 22,01 s−6,68 s | 28,69 s |
| Top speed (electronically limited) | 286 km/h+50 km/h | 236 km/h |
| Power-to-weight ratio | 3,95 kg/hpbetter ratio | 9,34 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 | 911 Carrera 4 991.2 | 420d Convertible G22 |
|---|---|---|
| 0–30 km/h | 1,17 s | 1,52 s |
| 0–50 km/h | 1,96 s | 2,64 s |
| 0–80 km/h | 3,21 s | 5,29 s |
| 0–100 km/h | 4,16 s | 7,75 s |
| 0–120 km/h | 5,39 s | 10,87 s |
| 0–160 km/h | 8,56 s | 20,11 s |
| 0–200 km/h | 13,31 s | 37,54 s |
| 400 m standing start | 12,19 s | 15,64 s |
| 1,000 m standing start | 22,01 s | 28,69 s |
| Top speed | 286 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 | 375 hp | B6 |
| Torque | 449 Nm | |
| Weight | 1 480 kg | manufacturer kerb weight |
| Drivetrain | Integrale (AWD) | |
| Gearbox | DUAL_CLUTCH |
| Characteristic | Value | Detail |
|---|---|---|
| Power | 190 hp | 4 cyl |
| Torque | 400 Nm | |
| Weight | 1 775 kg | manufacturer kerb weight |
| Drivetrain | - | |
| Gearbox | Eight-speed Steptronic transmission |
Off the line, the 911 Carrera 4 hits 100 km/h in 4.16 s versus 7.75 s for the 420d Convertible. At this point, the 911 Carrera 4 leads by 3.59 s and sits roughly 16 m ahead.
At 200 metres, the 911 Carrera 4 is doing 155 km/h against 116 km/h for the 420d Convertible. The gap is 2.05 s. The challenger starts to claw back ground.
At 400 metres standing start, the 911 Carrera 4 crosses the line in 12.19 s versus 15.64 s. The 3.45 s gap represents roughly 130 m of track - a gap visible to the naked eye.
Past 400 metres, the 911 Carrera 4 continues to build its lead. At 600 metres, it runs at 215 km/h versus 161 km/h. At 1,000 metres, the 911 Carrera 4 finishes in 22.00 s versus 28.69 s, with a 6.69 s lead.
Both rivals are electronically governed, but not at the same level: the 911 Carrera 4 is capped at 291 km/h, the 420d 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 (3.95 kg/hp vs 9.34 kg/hp) and transmission (Automatic vs Automatic).
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 12.82 seconds. The 3.59 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Over 0–100 km/h, 911 Carrera 4 991.2 wins (4,16 s vs 7,75 s).
911 Carrera 4 991.2 goes from 0 to 100 km/h in 4,16 seconds (calibrated simulation).
911 Carrera 4 991.2: 375 hp, ratio 3,95 kg/hp. 420d Convertible G22: 190 hp, ratio 9,34 kg/hp.
911 Carrera 4 991.2: 286 km/h. 420d Convertible G22: 236 km/h.