Xpeng P7 vs Mercedes C 300 de Estate W206: which is truly faster?

Off the line, the P7 hits 100 km/h in 4.22 s versus 6.17 s for the C 300 de Estate. At this point, the P7 leads by 1.96 s and sits roughly 9 m ahead.

At 200 metres, the P7 is doing 147 km/h against 123 km/h for the C 300 de Estate. The gap is 1.12 s. The challenger starts to claw back ground.

At 400 metres standing start, the P7 crosses the line in 12.54 s versus 14.36 s. The 1.82 s gap represents roughly 76 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 Estate keeps accelerating towards 240 km/h. At 600 metres, the gap has dropped to 1.88 s.

At 1,000 metres, the P7 finishes in 25.24 s versus 26.07 s, with just 0.83 s to spare. The C 300 de Estate fails to fully close the launch gap.

The P7 features all-wheel drive (AWD) against the C 300 de Estate’s RWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.

Both rivals are electronically governed, but not at the same level: the P7 is capped at 170 km/h, the C 300 de Estate at 240 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 6.98 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.22 seconds. The 1.96 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.