BMW M8 Competition Convertible F92 vs Audi e-tron GT quattro: which is truly faster?

Off the line, the M8 Competition Convertible hits 100 km/h in 3.32 s versus 4.14 s for the e-tron GT quattro. Despite lacking instant torque, 625 hp of power compensates. At this point, the M8 Competition Convertible leads by 0.82 s and sits roughly 6 m ahead.

At 200 metres, the M8 Competition Convertible is doing 168 km/h against 149 km/h for the e-tron GT quattro. The gap is 0.74 s. The gap remains stable from the start.

At 400 metres standing start, the M8 Competition Convertible crosses the line in 11.14 s versus 12.36 s. The 1.22 s gap represents roughly 61 m of track - a gap visible to the naked eye.

Past 400 metres, the M8 Competition Convertible continues to build its lead. At 600 metres, it runs at 234 km/h versus 208 km/h. At 1,000 metres, the M8 Competition Convertible finishes in 20.23 s versus 22.46 s, with a 2.23 s lead. Both vehicles have similar top speeds (250 (i.e. 155 mph - industry threshold) vs 245 km/h), preventing any comeback.

Both rivals are electronically governed, but not at the same level: the M8 Competition Convertible is capped at 250 (i.e. 155 mph - industry threshold) km/h, the e-tron GT quattro at 245 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 6.28 seconds. The 0.82 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.