Glastron built them but they were designed by Art Carlson, thus the model-C for Carlson. the outboards are actually more common than the jet or stern drive but they are not a boat you will see often as nice ones are getting scarce. If you watch the James Bond movie "live and let die" you will see a bunch of them of different sizes. My dad was with Glastron back at the time and was there for part of the filming. they are cool boats and handle well. My buddy has the very last CVX20 ever built, the molds were in storage and I had my dad get them to pull them out and build it for him. there are some guys on here who I believe have or had different Carlson models.