If they made a legit Nova looking character, his vehicle would have to be a rolling chair.
Or better yet a rolling chair and a desk with a laptop on it that also rolls.
Why did you quote a post from March 18th? I'll put this very clearly:
Jim, maker of Happy Wheels, contacted Nova about voice acting a character. They said it would be Gumby. Last update, "pogostick man" appeared in the sort by character list. He removed it with 1.62a. JUST today, 1.63 came out. Pogostick Man was released. Guess what? Nova voices Pogostick Man. If you listen, it is him.
The point: The same day Nova's character is released, you respond to a month old post talking about him getting a character.