The best way to see the latest and greatest jacked up classic cars is to go down Mission Street, San Francisco, on Cinco de Mayo. This enterprise takes a lot of automotive love and quite a bit of money as well and serves as a homage to the penultimate excesses of the American automotive age. The two-lane display screws up traffic but driving down Mission on a Saturday night was never going to be efficient anyway.
I’m pretty sure that there’s no requirement to upgrade to a more modern seatbelt, but with these stainless steel encrusted barges, any collision is going to be someone else’s problem.