Some sounds intended ideally for a Porsche 911 Cup (964), could also be suitable for a RSR. This can be used for any car you wish if you edit the files. This could also be used in GTL or RFactor if you know how to convert it.
Sounds made from recordings:
Time for 1.0 1.1 has come.
After numerous hours (an actual number would probably scare both you and me) here comes a version 1.0 1.1
If you find anything, don't hesitate to post in the Support section.
Couple videos, thanks to Andy-R (earlier version)
♦♦ Disclaimer ♦♦...