Porsche Cayenne Turbo S 958.2 vs Ford Mustang Mach-E GT: which is truly faster?

Off the line, the Mustang Mach-E GT hits 100 km/h in 3.73 s versus 3.96 s for the Cayenne Turbo S. The instant torque of 860 Nm from the electric motor makes the difference. At this point, the Mustang Mach-E GT leads by 0.23 s and sits roughly 2 m ahead.

At 200 metres, the Mustang Mach-E GT is doing 152 km/h against 152 km/h for the Cayenne Turbo S. The gap is 0.15 s. The gap remains stable from the start.

At 400 metres standing start, the Mustang Mach-E GT crosses the line in 11.99 s versus 12.11 s. The 0.12 s gap represents roughly 6 m of track - barely a car length.

Past 400 metres, the situation changes. The Mustang Mach-E GT maxes out at 200 km/h while the Cayenne Turbo S keeps accelerating towards 283 km/h. At 600 metres, the gap has dropped to 0.04 s.

Around 643 metres, both vehicles are level. This is the inversion point: the Cayenne Turbo S overcomes its launch deficit thanks to a 83 km/h higher top speed.

At 1,000 metres, the Cayenne Turbo S finishes in 22.13 s versus 22.87 s. The 0.74 s delta in favour of the Cayenne Turbo S shows that top speed makes a clear difference.

Both rivals are electronically governed, but not at the same level: the Cayenne Turbo S is capped at 283 km/h, the Mustang Mach-E GT at 200 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.

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 6.06 seconds. The 0.23 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.