BMW iX M60 I20 vs Porsche Cayman S PDK 987: which is truly faster?

Off the line, the iX M60 hits 100 km/h in 3.72 s versus 4.67 s for the Cayman S PDK. The instant torque of 1,100 Nm from the electric motor makes the difference. At this point, the iX M60 leads by 0.96 s and sits roughly 14 m ahead.

At 200 metres, the iX M60 is doing 151 km/h against 151 km/h for the Cayman S PDK. The gap is 0.68 s. The challenger starts to claw back ground.

At 400 metres standing start, the iX M60 crosses the line in 11.94 s versus 12.60 s. The 0.66 s gap represents roughly 34 m of track - a gap visible to the naked eye.

Past 400 metres, the iX M60 continues to build its lead. At 600 metres, it runs at 212 km/h versus 212 km/h. At 1,000 metres, the iX M60 finishes in 21.84 s versus 22.56 s, with a 0.71 s lead. Despite a higher top speed (286 km/h), the Cayman S PDK never recovers its launch deficit.

The iX M60 features all-wheel drive (AWD) against the Cayman S PDK’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 250 (i.e. 155 mph - industry threshold) km/h, the iX M60 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 6.63 seconds. The 0.96 s difference in 0 to 100 km/h is mostly felt in motorway merging and overtaking.