ok here's one: MRC-Fujimi Ferrari F40. It's out of production, found mine on Ebay. Real good detail, molded in red, even has wire mesh screen for the ducts in the body and rear tail panel.
did not require any major cutting, only small cuts to rear lower panel to clear body post screws. (you can use shorter screws,then no cutting would be needed). Kit tires (scale Pirelli PZero) can be used on Mini-X rims. See my pic in the Mini-X gallery.

I'm interested in a Porsche 959 body, anybody know of one that fits? How bout the Tamiya kit?