[dvd3500]

Woodcote more eloquently stated what I was trying to say.
Scratchbuilding has to remain very general and basic.
It also helps you to tweak and tune your "ready to run" cars as the skills can be the same.

Once you get past the basics though class rules kick in if you want to compete. Here in Germany 1/24 scale scratchbuilt racing is so prominent that even trying to get something in other scale off the ground is met with blank stares and rolled eyes.

Personally I think the the scratchbuilt scene here is the poorer for it.... (even though the cars do look amazing)