Xpeng P7 vs Porsche 911 Targa 4 991.1 : 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%Reading the duel
At 400 m, Xpeng P7 leads by 0.66 s. At 1 000 m, Porsche 911 Targa 4 takes the lead by 1.57 s.
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 Targa 4: chronicle of a drag race at 281 km/h
The launch: 0 to 100 km/h
Off the line, the P7 hits 100 km/h in 4.22 s versus 5.16 s for the 911 Targa 4. The instant torque of 655 Nm from the electric motor makes the difference. At this point, the P7 leads by 0.95 s and sits roughly 11 m ahead.
From 100 km/h to 400 metres
At 200 metres, the P7 is doing 147 km/h against 141 km/h for the 911 Targa 4. The gap is 0.63 s. The challenger starts to claw back ground.
At 400 metres standing start, the P7 crosses the line in 12.54 s versus 13.20 s. The 0.66 s gap represents roughly 33 m of track — a gap visible to the naked eye.
Beyond 400 metres: top speed comes into play
Past 400 metres, the situation changes. The P7 maxes out at 170 km/h while the 911 Targa 4 keeps accelerating towards 281 km/h. At 600 metres, the gap has dropped to 0.21 s.
Around 661 metres, both vehicles are level. This is the inversion point: the 911 Targa 4 overcomes its launch deficit thanks to a 111 km/h higher top speed.
At 1,000 metres, the 911 Targa 4 finishes in 23.67 s versus 25.24 s. The 1.57 s delta in favour of the 911 Targa 4 shows that top speed makes a clear difference.
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 Targa 4 at 282 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 7.68 seconds. The 0.95 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.
Xpeng P7 has a clear edge over the Porsche 911 Targa 4 to 100 km/h. This difference is clearly noticeable in spirited driving and widens on standing starts.