Yea gotta agree with the editing, especially the audio, there is no weird overlaps / miss matches easily audible in video and it has been sampled quite beautifully. But at least for me still it is easy to spot, there are parts where the audio is doing 200 km/h ++ and then suddenly it starts to shift down and the speed is very low, just doesn't seem right. Or when in video I can clearly see the car is on straight doing 80-100 km/h tops, but the audio is from a Ferrari doing again something 200+ flat out.
Tho I'm probably better than average hearing this stuff since I'm very passionate about engine sounds and a really big amount of my free time involves engine sounds in some way. So the average person probably would have more hard time trying to figure this video out. Only way I can enjoy a racing / driving video of some sort is if it has original, good quality audio.