Porsche Cayenne S (8-speed Tiptronic S) 958.1 vs Porsche Panamera 971: which is truly faster?

Off the line, the Panamera hits 100 km/h in 5.28 s versus 5.81 s for the Cayenne S (8-speed Tiptronic S). At this point, the Panamera leads by 0.53 s and sits roughly 4 m ahead.

At 200 metres, the Panamera is doing 136 km/h against 133 km/h for the Cayenne S (8-speed Tiptronic S). The gap is 0.29 s. The challenger starts to claw back ground.

At 400 metres standing start, the Panamera crosses the line in 13.57 s versus 13.99 s. The 0.42 s gap represents roughly 19 m of track - two to three car lengths.

Past 400 metres, the Panamera continues to build its lead. At 600 metres, it runs at 190 km/h versus 185 km/h. At 1,000 metres, the Panamera finishes in 24.66 s versus 25.35 s, with a 0.70 s lead. Both vehicles have similar top speeds (253 vs 264 km/h), preventing any comeback.

Both rivals are electronically governed, but not at the same level: the Cayenne S (8-speed Tiptronic S) is capped at 258 km/h, the Panamera at 264 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.

With two combustion powertrains, the difference comes down to power-to-weight ratio (4.92 kg/hp vs 5.42 kg/hp) and transmission (Automatic vs Automatic).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 8.89 seconds. The 0.53 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.