I was just reading up on SCCA class rules yesterday...

Enlarging that upper hole kicks you all the way out of Solo Street Prepared, IIRC (even though camber plates are allowed.)

I don't know about road racing, and of course it all depends on the sanctioning org. (SCCA, vs NASA, vs whoever)

Might be worth considering. Don't want to make a racing product that's illegal for all the likely Contour racing series.



Function before fashion. '96 Contour SE "Toss the Contour into a corner, and it's as easy to catch as a softball thrown by a preschooler." -Edmunds, 1998