Patch 0.5W
I was racing yesterday with the MRT. (My server, don't know if this affects anything)
Today i joined a server with all cars allowed.
Stayed on spectate mode.
Then an admin came and locked the server as to allow only TBO cars.
Later on I went to the pits (Garage button) and the MRT showed up there (last car i used, yesterday on another server).
I clicked "OK" and went to the track. Even as the only cars allowed were TBOs.
Don't know if this is a bug already fixed or what.
If not, we could try to reproduce it. Shouldn't be that hard.
All you would need to do is join a server with a certain car (or even create one yourself - maybe single player would work too?) and then go to another server with all cars allowed, see if they could lock to not allow the last car you used and try to get it on the track, as i did with the MRT, posted above.
Maybe it would work (the bug) even on a server which has that last car you used already locked out (not allowed).
I'm just talking about an all allowed cars/then locked cars server cause that's how the bug worked for me.
If it's already been reported/fixed sorry about the waste of HDD and bandwidth.