Xpeng P7 vs Mercedes AMG C 43 4MATIC W206: which is truly faster?

Off the line, the P7 hits 100 km/h in 4.22 s versus 4.56 s for the AMG C 43 4MATIC. The instant torque of 655 Nm from the electric motor makes the difference. At this point, the P7 leads by 0.35 s and sits roughly 7 m ahead.

At 200 metres, the P7 is doing 147 km/h against 146 km/h for the AMG C 43 4MATIC. The gap is 0.33 s. The gap remains stable from the start.

At 400 metres standing start, the P7 crosses the line in 12.54 s versus 12.78 s. The 0.24 s gap represents roughly 12 m of track - two to three car lengths.

Past 400 metres, the situation changes. The P7 maxes out at 170 km/h while the AMG C 43 4MATIC keeps accelerating towards 265 km/h. At 600 metres, the gap has dropped to 0.32 s.

Around 505 metres, both vehicles are level. This is the inversion point: the AMG C 43 4MATIC overcomes its launch deficit thanks to a 95 km/h higher top speed.

At 1,000 metres, the AMG C 43 4MATIC finishes in 22.90 s versus 25.24 s. The 2.34 s delta in favour of the AMG C 43 4MATIC shows that top speed makes a clear difference.

Both rivals are electronically governed, but not at the same level: the P7 is capped at 170 km/h, the AMG C 43 4MATIC at 265 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 7.01 seconds. The 0.35 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.