[Burridge]

pawn Код:

#include <a_samp>
new 
    AdminVehicle;

public OnFilterScriptInit()
{
    AdminVehicle = AddStaticVehicle(541,711.4348,1948.3846,5.0976,179.8788, -1, -1); //Bullet
    return 1;
}

public OnPlayerEnterVehicle(playerid, vehicleid)
{
    if(Vehicle == AdminVehicle && !IsPlayerAdmin(playerid))
    {
        RemovePlayerFromVehicle(playerid);
        SendClientMessage(playerid, 0x33AA33AA, "I'm sorry, but this car has been reserved for Admins only!");
    }
    return 1;
}

Should work (NOT TESTED). I also think there is a tutorial about somewhere. This also should've been posted in Scripting Discussion.