BMW 750Li xDrive G11 vs BYD Dolphin Boost 150kW: which is truly faster?

Off the line, the 750Li xDrive hits 100 km/h in 4.05 s versus 6.93 s for the Dolphin Boost 150kW. Despite lacking instant torque, 530 hp of power compensates. At this point, the 750Li xDrive leads by 2.89 s and sits roughly 22 m ahead.

At 200 metres, the 750Li xDrive is doing 162 km/h against 126 km/h for the Dolphin Boost 150kW. The gap is 2.15 s. The challenger starts to claw back ground.

At 400 metres standing start, the 750Li xDrive crosses the line in 11.80 s versus 15.13 s. The 3.33 s gap represents roughly 135 m of track - a gap visible to the naked eye.

Past 400 metres, the 750Li xDrive continues to build its lead. At 600 metres, it runs at 229 km/h versus 160 km/h. At 1,000 metres, the 750Li xDrive finishes in 21.02 s versus 28.66 s, with a 7.64 s lead.

Both rivals are electronically governed, but not at the same level: the 750Li xDrive is capped at 250 (i.e. 155 mph - industry threshold) km/h, the Dolphin Boost 150kW at 160 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.

Instant electric torque gives an advantage off the line. The higher top speed of the combustion engine gives an advantage over longer distances. The distance at which one catches the other depends on the top speed differential.

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 10.58 seconds. The 2.89 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.