They specifically mention the Fox 500 in the latest issue of 5.0. I can't put my hands on it right now, but it is just in one of those little blurbs about new products. The product was for a wiring harness for engine swaps, and they mention that they are using the same product in the Fox 500. There seems to be a lot of rumor and unfounded innuendo in this thread. Think about all of the sponsors and plugs that gave products and free services for that car. You can't just sell off a project like that, once it is made public, and tons of project contributors have to be answered to.
Do you think that tool, Steve Turner, had to actually pay for all of the upgrades to his project 'Vapor Trail?? Don't be ridiculous, the parts and labor are freebies for the free advertising in the magazine. Just like with the Fox 500 project car.