Porsche Cayman GT4 981 vs Audi A6 Avant e-tron: which is truly faster?

Off the line, the Cayman GT4 hits 100 km/h in 3.95 s versus 5.45 s for the A6 Avant e-tron. Despite lacking instant torque, 385 hp of power compensates. At this point, the Cayman GT4 leads by 1.50 s and sits roughly 18 m ahead.

At 200 metres, the Cayman GT4 is doing 155 km/h against 136 km/h for the A6 Avant e-tron. The gap is 1.24 s. The challenger starts to claw back ground.

At 400 metres standing start, the Cayman GT4 crosses the line in 11.90 s versus 13.77 s. The 1.87 s gap represents roughly 84 m of track - a gap visible to the naked eye.

Past 400 metres, the Cayman GT4 continues to build its lead. At 600 metres, it runs at 218 km/h versus 187 km/h. At 1,000 metres, the Cayman GT4 finishes in 21.59 s versus 25.00 s, with a 3.41 s lead.

Electronically capped at 210 km/h, the A6 Avant e-tron never reaches its natural aerodynamic ceiling in this duel. That’s not a physical limit of the motor - it’s a deliberate manufacturer decision, typically tied to standard-fit tyre ratings or model-range positioning.

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 8.31 seconds. The 1.50 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.