Xpeng P7 vs Porsche 911 Carrera 4 991.2 : which one is faster?
0-100 km/h, 400 m, 1000 m, top speed — physics simulation calibrated on 7 measures.
Simulation de performance
Race simulation at real speed
CONFIDENCE 90%Calibrated physics simulation: SCx via VMax, power curves, Crr via WLTP, drivetrain losses. Manufacturer 0-100 is the calibration target. Confidence 90 %.
P7 vs 911 Carrera 4: chronicle of a drag race at 286 km/h
The launch: 0 to 100 km/h
Off the line, the 911 Carrera 4 hits 100 km/h in 4.16 s versus 4.22 s for the P7. Despite lacking instant torque, 375 hp of power compensates. The 0.05 s gap is negligible: both vehicles are neck and neck.
From 100 km/h to 400 metres
At 200 metres, the 911 Carrera 4 is doing 155 km/h against 147 km/h for the P7. The gap is 0.08 s. The gap remains stable from the start.
At 400 metres standing start, the 911 Carrera 4 crosses the line in 12.19 s versus 12.54 s. The 0.36 s gap represents roughly 17 m of track — two to three car lengths.
Beyond 400 metres: top speed comes into play
Past 400 metres, the 911 Carrera 4 continues to build its lead. At 600 metres, it runs at 215 km/h versus 170 km/h. At 1,000 metres, the 911 Carrera 4 finishes in 22.00 s versus 25.24 s, with a 3.24 s lead.
What the numbers don’t tell you
Both rivals are electronically governed, but not at the same level: the P7 is capped at 170 km/h, the 911 Carrera 4 at 291 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.
Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.
In European road use (130 km/h max), both vehicles reach the legal speed limit in under 6.49 seconds. The 0.05 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Xpeng P7 and Porsche 911 Carrera 4 are virtually tied to 100 km/h. The gap is under a tenth of a second — only the physics engine can settle it step by step.