a file with information about the versions of each car with for example

It would be interesting to have a file provided by the developers with information about the versions of each car with for example
- car class
- car model
- physics version
- tyres version
- suspension version
- abs (yes or no)
- TC (yes or no)

and many others information

 

Or ask for a rest api : http://localhost:5397/swagger/index.html
Most of what you need is probably already there ...

 

@DanRZ
Sorry. I don't understand

 

Launch your rF2 and use the links in http://localhost:5397/swagger/index.html
There is a 'Try out' button ...

They gave you a lot of information and maybe what you need.