I have been given a 72 fastback. On my first ride the front passenger tire's belt seperated. The tires are old and tired so my plan is to change all four but here is my dilema. The tires it has are on the stock wheel/hubcab combo and I was wondering about buying magnum 500s or simple larger/wider steel wheels and using those without any hubcaps. What size wheels are favored by those who own this car? I have seen some photos on the net of this car with really wide tires in the back.