As someone passively enthusiast about cars, I think that's in general a good thing. People buying classic/old cars generally know it's not going to have current safety regulations, but may still appreciate it and take the risks.

I'm font on retro/rust-mods where they're updated with modern engines, controls, etc... others prefer completely stock/original as possible. In the end, it's not so different from being able to maintain a listed building in England or other heritage or historical works, other than it rolls down the roads.