So rather than remake a legacy business, you could start a new racing league. Give it a new name: "Z1" racing or something. I'm pretty sure the venue owners

So rather than remake a legacy business, you could start a new racing league. Give it a new name: "Z1" racing or something. I'm pretty sure the venue owners always appreciate new draws for crowds. You'd need to recruit a few teams (start with engineering departments at universities?), and then do marketing to bring the crowds in. Does YCombinator take pitches like this?