[BigSandwich]

Rallyrat. I hear what you are saying about different designs. But there are many many rally cars out there that have not been seam welded and are very fast / competitive. Also it is straight forward to build a cage that fits into both classes of racing. For example the car is Knestis' old car was a dual purpose cage and it didn't hurt his performance in road racing.

As for suspension the great thing about it is that it unbolts from the car with ease. So I see you having 1 set of springs and dampers that you run at road racing and maybe on tarmac rallies. And aother set for gravel rally.