Mercedes G 450 d W463 vs BMW X7 xDrive30d G07: which is truly faster?

Off the line, the G 450 d hits 100 km/h in 5.83 s versus 6.94 s for the X7 xDrive30d. At this point, the G 450 d leads by 1.11 s and sits roughly 8 m ahead.

At 200 metres, the G 450 d is doing 128 km/h against 119 km/h for the X7 xDrive30d. The gap is 0.55 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 15.04 s. The 0.93 s gap represents roughly 37 m of track - a gap visible to the naked eye.

Past 400 metres, the G 450 d continues to build its lead. At 600 metres, it runs at 174 km/h versus 164 km/h. At 1,000 metres, the G 450 d finishes in 26.22 s versus 27.89 s, with a 1.67 s lead. Despite a higher top speed (227 km/h), the X7 xDrive30d 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 X7 xDrive30d at 227 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 8.94 kg/hp) and transmission (Unknown vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.64 seconds. The 1.11 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.