Add Car id (https://github.com/ForzaMods/fh5idlist) 

forzamods_cartable_exe.zip [622.64 Kb] (downloads: 28)

Usage:

1. Download from github or build yourself.

2. Go into car collection ingame

3. Hover over the FD Viper

4. Click scan

5. Paste Id

6. Click swap

https://m.youtube.com/watch?v=ApcQH8OhuPQ