They were experimenting with this in GT5, purchases the premium Ford GT without a stripe and paint it. It was an early experiment so it's not perfected. I have several rare Ford GT's. The stripe it self is no different than that found on the factory striped ones but, with a little patients you can find alternate stripe colors. For instance, I have a white GT with black stripes (Factory is blue), A red one with black stripes (Factory and common is white) and a blue one with black stripes (Factory and common is white).