Well... technically Lethal was original, as it was the first design to feature the helix at the end

If you take a look on the Mack website, you'll see that our Scooby Doo track design is shown on there. I suspect Scooby now may have been copied somewhere else in the world.

Nah, those are just layout examples, not actual production models. Besides, a simple check of rcdb proves Scooby is still unique.