Mercedes G 450 d W463 vs Porsche Macan 95B.2: which is truly faster?

Off the line, the G 450 d hits 100 km/h in 5.83 s versus 6.29 s for the Macan. At this point, the G 450 d leads by 0.46 s and sits roughly 7 m ahead.

At 200 metres, the G 450 d is doing 128 km/h against 125 km/h for the Macan. The gap is 0.33 s. The challenger starts to claw back ground.

At 400 metres standing start, the G 450 d crosses the line in 14.11 s versus 14.56 s. The 0.45 s gap represents roughly 19 m of track - two to three car lengths.

Past 400 metres, the G 450 d continues to build its lead. At 600 metres, it runs at 174 km/h versus 171 km/h. At 1,000 metres, the G 450 d finishes in 26.22 s versus 26.84 s, with a 0.62 s lead. Despite a higher top speed (229 km/h), the Macan never recovers its launch deficit.

Both rivals are electronically governed, but not at the same level: the G 450 d is capped at 210 km/h, the Macan at 229 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 combustion powertrains, the difference comes down to power-to-weight ratio (6.96 kg/hp vs 7.59 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.24 seconds. The 0.46 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.