Audi S6 Sportback e-tron vs BMW M2 Competition F87: which is truly faster?

Off the line, the S6 Sportback e-tron hits 100 km/h in 4.08 s versus 4.43 s for the M2 Competition. The instant torque of 855 Nm from the electric motor makes the difference. At this point, the S6 Sportback e-tron leads by 0.35 s and sits roughly 8 m ahead.

At 200 metres, the S6 Sportback e-tron is doing 146 km/h against 157 km/h for the M2 Competition. The gap is 0.17 s. The challenger starts to claw back ground.

At 400 metres standing start, the M2 Competition crosses the line in 12.30 s versus 12.52 s. The 0.22 s gap represents roughly 11 m of track - two to three car lengths.

Past 400 metres, the M2 Competition continues to build its lead. At 600 metres, it runs at 218 km/h versus 191 km/h. At 1,000 metres, the M2 Competition finishes in 21.96 s versus 23.58 s, with a 1.61 s lead.

Both rivals are electronically governed, but not at the same level: the S6 Sportback e-tron is capped at 240 km/h, the M2 Competition 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 6.31 seconds. The 0.35 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.