Xpeng P7 vs Mercedes C 300 de 4MATIC T-Modell W206: which is truly faster?

Off the line, the P7 hits 100 km/h in 4.22 s versus 6.36 s for the C 300 de 4MATIC T-Modell. At this point, the P7 leads by 2.15 s and sits roughly 10 m ahead.

At 200 metres, the P7 is doing 147 km/h against 122 km/h for the C 300 de 4MATIC T-Modell. The gap is 1.22 s. The challenger starts to claw back ground.

At 400 metres standing start, the P7 crosses the line in 12.54 s versus 14.52 s. The 1.98 s gap represents roughly 82 m of track - a gap visible to the naked eye.

Past 400 metres, the gap narrows. The P7 maxes out at 170 km/h while the C 300 de 4MATIC T-Modell keeps accelerating towards 232 km/h. At 600 metres, the gap is down to 2.09 s from 1.98 s at 400 metres.

At 1,000 metres, the P7 finishes in 25.24 s versus 26.36 s, with just 1.11 s to spare. The C 300 de 4MATIC T-Modell fails to fully close the launch gap.

Both rivals are electronically governed, but not at the same level: the P7 is capped at 170 km/h, the C 300 de 4MATIC T-Modell at 232 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 plug-in hybrid powertrains, the difference comes down to power-to-weight ratio (4.81 kg/hp vs 7.14 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.56 seconds. The 2.15 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.