Apologise is this is a daft question but i have the audi s5 with the s tronic gearbox. Earlier on i had just given it a wash and wanted to show my brother the sound of the engine when parked up. So i put the car into park and revved the engine. I was supprised that it only rev'd to 4000rpm and wouldnt go higher, i tryed it in neutral aswell and the same outcome. Why is this? And is there anyway to redline the car when parked? I have googled it but can't find anything, Thanks.