Hello, Well do not know if this will be 0.4 server problem, or am I doing wrong.
Vehicle CreateVehicle( int model, int world, Vector pos, float angle, int col1, int col2 )
but this not use float angle, use Quaternion, try to create a car using Angle Float, Vector, and Quaternion, and all the car appears with a Angle of (1, 0, 0, 0).
Before you tell me to run, create the car and test the angle without climbing in because if you enter the car the angle is updated.

Sorry for bad English.