Audi e-tron GT quattro vs BMW M4 Competition Convertible F82: which is truly faster?

Off the line, the e-tron GT quattro hits 100 km/h in 4.14 s versus 4.43 s for the M4 Competition Convertible. The instant torque of 830 Nm from the electric motor makes the difference. At this point, the e-tron GT quattro leads by 0.29 s and sits roughly 2 m ahead.

At 200 metres, the e-tron GT quattro is doing 149 km/h against 148 km/h for the M4 Competition Convertible. The gap is 0.16 s. The challenger starts to claw back ground.

At 400 metres standing start, the e-tron GT quattro crosses the line in 12.36 s versus 12.51 s. The 0.15 s gap represents roughly 8 m of track - barely a car length.

Past 400 metres, the gap narrows. The e-tron GT quattro maxes out at 245 km/h while the M4 Competition Convertible keeps accelerating towards 250 (i.e. 155 mph - industry threshold) km/h. At 600 metres, the gap has dropped to 0.11 s.

At 1,000 metres, the e-tron GT quattro finishes in 22.46 s versus 22.55 s, with just 0.09 s to spare. The M4 Competition Convertible fails to fully close the launch gap.

Both rivals are electronically governed, but not at the same level: the e-tron GT quattro is capped at 245 km/h, the M4 Competition Convertible at 250 (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.

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 6.52 seconds. The 0.29 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.