Originally Posted by Skiddins

A large amount of F1 suspension travel is in the sidewall of the tyres, if I recall it's a least 50%



'Normal' road cars have chassis flex built in as it improves the ride quality etc. For racing it's a different story.
I think part of the issue is that the laws of physics don't scale, they are the same whatever, and our tiny cars accelerate, corner and reach speeds (in comparison to scale) far greater than their full size equivalents.
It's the same when all slop etc is removed from suspension components in our cars, it makes them almost undrivable.