Road course or autocross or both?

I think Tim's car is focused all on road course.

Of course Tim's car is actually Valiant.

The Stielow "Camaro" is 100% fabricated custom chassis vehicle that just happens to by-the-way have Camaro body hung over it.

With the aero and no compromise chassis, I'd guess the Stielow "Camaro" would be faster on a road course. I have no idea if Tim's Valiant would keep pace or not.