Why does Texas hate dune buggies?

Ridiculous.they might as well pull all the old military jeeps too.
Next will be anything with carburetors or without airbags or anti-lock brakes.
Its all about compliance.

So what about heavily customized vehicles?

The next thing you know anything considered a hotrod will only be for show and not drivable.

Kind of like the second amendment.
Sure you have the right to own, but no constitutional rights that there had to be bullets for it.