Does anyone have a source to purchase plain steel wheels that will fit my '01 Mustang GT? I need to take off my Bullitt wheels for winter driving.

I purchased black steel wheels, that are identical to the ones that Ford Crown Vic police cruisers wear from Les Schwab Tires for about $60 a piece...  Any tire store should be able to supply these to you.  These are 17" the same size as my bullitt wheels that I took off.  One thing though is that there is a bit more backspacing with the steel wheels than the stock wheels.  My snow tires rub just barely when I turn real sharp (into a parking space or the driveway).