There are all kinds of ways to be a car person. The psychopath who claims to be my father loved paint-by-number hotrods and those terrible expo center shows full of lame trailer queens, so I'm quite familiar with that kind of stuff. I grew up thinking I hated custom cars largely because of the ubiquity of Barris' cartoon creations (and the cars he didn't build, but took credit for) and those he inspired that I thought made up the whole of it. Then I saw one of Marcello Gandini's more famous works in a cheesy movie and a whole new world opened up for me (also didn't hurt that "dad" had no idea what it was) and I even went on to pursue automotive design before a whole lot of life came crashing down. Reality Show Boyd's stuff is much cleaner, but variation-on-a-theme isn't for me. There are all kinds of ways to be into cars.
Looks like the bikes are just a standard bike with a paint scheme and their licensed names—good work if you (or your estate) can get it!