Alfa Romeo Stelvio Quadrifoglio vs Porsche Cayenne Platinum Edition 958.1: which is truly faster?

Off the line, the Stelvio Quadrifoglio hits 100 km/h in 3.83 s versus 7.55 s for the Cayenne Platinum Edition. At this point, the Stelvio Quadrifoglio leads by 3.72 s and sits roughly 22 m ahead.

At 200 metres, the Stelvio Quadrifoglio is doing 156 km/h against 119 km/h for the Cayenne Platinum Edition. The gap is 2.39 s. The challenger starts to claw back ground.

At 400 metres standing start, the Stelvio Quadrifoglio crosses the line in 11.86 s versus 15.50 s. The 3.64 s gap represents roughly 141 m of track - a gap visible to the naked eye.

Past 400 metres, the Stelvio Quadrifoglio continues to build its lead. At 600 metres, it runs at 216 km/h versus 166 km/h. At 1,000 metres, the Stelvio Quadrifoglio finishes in 21.59 s versus 28.19 s, with a 6.60 s lead.

Both rivals are electronically governed, but not at the same level: the Stelvio Quadrifoglio is capped at 283 km/h, the Cayenne Platinum Edition at 229 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 (3.59 kg/hp vs 6.68 kg/hp) and transmission (Automatic vs Unknown).

In European road use (130 km/h max), both vehicles reach the legal speed limit in under 11.90 seconds. The 3.72 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.