[MasterMind420]

ok it looks like everything is good...except i'm curious if this is a oversight or not...
line 126...CreateTimer(0.0, Car, entity, TIMER_REPEAT|TIMER_FLAG_NO_MAPCHANGE);
the lowest possible timer thru createtimer is 0.1....i think 0.0 would just default to that but who knows.
also for efficiency and to guarantee all netprops Datamaps are available from the tank rock i would use a spawnpost hook instead of nextframe.
i've seen in some situations where next frame is too early after onentitycreated.
Good luck...