@Soul
Sorry for not reply to the subject. The Video is real, you have to keep in mind that the Cayenne is heavy car and an SUV so has to face more drags at higher speeds then the M3 would have to. if look it kept up until I am guessing 100+ and then it started to creep back. Coz the drag hit it harder then it did to M3.
@Farzal
Do not worry if you get pics from anywhere else then you car, we will know. PW has a lot of folks who are far better then Sherlock Holmes 