Hans Question

[MGDavid]

>>>Race cars are engineered to have the maximum stiffness (you don't believe that roll cages are only designed to protect the driver do you?) while road cars are deliberately designed to crush over quite large distances
=== but this is part of DB's point I think - saloon-based race cars aren't a lot different from the road car. IIRC there's summat in the BB about cages NOT going beyond the passenger cell and onto suspension pickup points, so they only stiffen the cell, the surrounding structure crushability remains exactly the same as the road car.