Audi RS 5 Avant vs Porsche 911 GT3 RS 991.2: which is truly faster?

Off the line, the 911 GT3 RS hits 100 km/h in 3.26 s versus 3.66 s for the RS 5 Avant. Despite lacking instant torque, 507 hp of power compensates. At this point, the 911 GT3 RS leads by 0.39 s and sits roughly 2 m ahead.

At 200 metres, the 911 GT3 RS is doing 169 km/h against 156 km/h for the RS 5 Avant. The gap is 0.38 s. The gap remains stable from the start.

At 400 metres standing start, the 911 GT3 RS crosses the line in 11.02 s versus 11.72 s. The 0.70 s gap represents roughly 37 m of track — a gap visible to the naked eye.

Past 400 metres, the 911 GT3 RS continues to build its lead. At 600 metres, it runs at 235 km/h versus 218 km/h. At 1,000 metres, the 911 GT3 RS finishes in 19.95 s versus 21.35 s, with a 1.41 s lead.

Electronically capped at 250 (i.e. 155 mph — industry threshold) km/h, the RS 5 Avant 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 5.51 seconds. The 0.39 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.