[NaS]

I don't think bumping will result in real answers, except "stop bumping" etc... Since nobody seems to have an answer.

It's a SAMP problem, since the vehicle wasn't updated yet (or st. like this).

Try if GetVehicleZAngle returns a correct value after spawning. If not, I guess your question is answered.

There is actually no real fix, but since YOU spawn the vehicle, you have the rotation already right?