The idea for this came from a tweet made by a punk-geeky rocker named Kieran Strange (see tweet HERE ) and I thought and asked for permission to use an inspiration. Thank you! Really from the stories from others in the music biz... tour life can be a rough journey....its not all cocktail parties. I thought it would be hilarious too for one Rocket Twin to drag the other twin along with a rocket car hahaha. No super sophisticated idea for designing their rocket car other then what kind of vehicle would Rocket Twins drive hmm?