[Jstylezzz]

pawn Код:

public OnPlayerExitVehicle(playerid, vehicleid)
{
    SetTimerEx("RespawnCar",3000,0,"i",vehicleid);// Set a 3 second timer
    return 1;
}
forward RespawnCar(vehicleid);
public RespawnCar(vehicleid)
{
    SetVehicleToRespawn(vehicleid);
    return 1;
}

EDIT: Konstantinos beat me to it ;P