Porsche 911 Turbo 991.1 vs Porsche 911 GT3 RS 991.2: which is truly faster?

Off the line, the 911 Turbo hits 100 km/h in 3.22 s versus 3.26 s for the 911 GT3 RS. The 0.05 s gap is negligible: both vehicles are neck and neck.

At 200 metres, the 911 Turbo is doing 170 km/h against 169 km/h for the 911 GT3 RS. The gap is 0.04 s. The gap remains stable from the start.

At 400 metres standing start, the 911 Turbo crosses the line in 10.97 s versus 11.02 s. The 0.05 s gap represents roughly 3 m of track — barely a car length.

Past 400 metres, nothing changes. Same ceiling, same acceleration, same trajectory — both rivals run in formation to the line. The 0.05 s gap at 1,000 metres confirms what the specs already suggested: on track, they’re interchangeable. The real contest happens elsewhere — range, comfort, charging network reliability.

The 911 Turbo features all-wheel drive (AWD) against the 911 GT3 RS’s RWD. At low speeds (0-30, 0-50, 0-80 km/h), AWD doubles the driven contact area: all four wheels transmit torque to the road, virtually eliminating wheelspin at launch. This traction advantage is decisive in the range where the motor delivers peak torque, before power and aerodynamics take over.

Electronically capped at 314 km/h, the 911 Turbo 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.

With two combustion powertrains, the difference comes down to power-to-weight ratio (3.07 kg/hp vs 2.80 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 4.73 seconds. The 0.05 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.