Not that this has much to do with the OP's decision.
I think that comes down to how much of a project and what fits his planned uses.
That said its always fun to watch how long Ken's Corvair stays competitive with drums on all four.
You'll have to go on to part 2 before his brakes get too hot and he need to back off a bit.
The guy chasing him with the dash cam is in a much newer BMW.
The rules are factory iron brakes, so that limits what a Corvair can use.
What is that white Saloon he is following ? Jag xk120 ? I see a BMW 2002 and the mentioned Corvair , older 911 or 912... whats the blue car with the trunkated trunk ? I think I have a Model Motoring HO slot car of one ...
And I could tell the car with dashcam was a E36 or later BMW ( with an SMG ?)