Porsche 911 Turbo S 991.1 vs Audi S6 Avant e-tron: which is truly faster?

Off the line, the 911 Turbo S hits 100 km/h in 2.95 s versus 4.03 s for the S6 Avant e-tron. Despite lacking instant torque, 568 hp of power compensates. At this point, the 911 Turbo S leads by 1.08 s and sits roughly 9 m ahead.

At 200 metres, the 911 Turbo S is doing 176 km/h against 150 km/h for the S6 Avant e-tron. The gap is 1.04 s. The gap remains stable from the start.

At 400 metres standing start, the 911 Turbo S crosses the line in 10.57 s versus 12.29 s. The 1.72 s gap represents roughly 85 m of track - a gap visible to the naked eye.

Past 400 metres, the 911 Turbo S continues to build its lead. At 600 metres, it runs at 243 km/h versus 206 km/h. At 1,000 metres, the 911 Turbo S finishes in 19.22 s versus 22.44 s, with a 3.22 s lead.

Both rivals are electronically governed, but not at the same level: the 911 Turbo S is capped at 317 km/h, the S6 Avant e-tron at 240 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 6.10 seconds. The 1.08 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.