Mercedes G 450 d W463 vs Porsche Macan S 95B.1: which is truly faster?

Off the line, the Macan S hits 100 km/h in 5.28 s versus 5.83 s for the G 450 d. Despite the faster sprint time, the G 450 d is 1 m further along the track at this moment: stronger low-speed acceleration offsets a slower run beyond 100 km/h.

At 200 metres, the Macan S is doing 138 km/h against 128 km/h for the G 450 d. The gap is 0.22 s. The challenger starts to claw back ground.

At 400 metres standing start, the Macan S crosses the line in 13.52 s versus 14.11 s. The 0.59 s gap represents roughly 25 m of track — two to three car lengths.

Past 400 metres, the Macan S continues to build its lead. At 600 metres, it runs at 190 km/h versus 174 km/h. At 1,000 metres, the Macan S finishes in 24.59 s versus 26.22 s, with a 1.63 s lead.

Both rivals are electronically governed, but not at the same level: the G 450 d is capped at 210 km/h, the Macan S at 251 (i.e. 155 mph — industry threshold) 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 5.49 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 9.41 seconds. The 0.55 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.