QUESTION How to get TyreHeadingVector

[andrea_serafini]

Hi all, as I said in the title, I'm trying to find the TyreHeadingVector with:
ac.getCarState(0, acsys.CS.TyreHeadingVector, acsys.WHEELS.RR)
but I get -1 instead of the heading vector of the tyre.

Can anyone tell me why?

 

[andrea_serafini]

Does anyone know the answer?
Thanks

 

[fughettaboutit]

map_display app also tries to read that, but seems like its only available for some cars or something