[Konstantinos]

The size of DriversTest is 4 so the valid indexes are 0-3. You can loop through all its indexes and see if the vehicleid matches.

pawn Код:

if (IsVehicleForDrivingTest(vehicleid))
{
    // vehicle is for driving tests..
}

pawn Код:

IsVehicleForDrivingTest(vehicleid)
{
    for (new i; i != sizeof (DriversTest); ++i)
    {
        if (vehicleid == DriversTest[i]) return 1;
    }
    return 0;
}