[yeukhon]

You are missing the point. If spinoff, Uber is the parent company. Spinoff is not to remove the new company entirely, just financially and operationally. It's only telling the world "our main company - the one in IPO, will strengthen core business so we burn less money, while our research team is working in the new spinoff company." That's how I would run my company. YMMV. When UberAuto is ready, Uber can merge or have Auto license back. This should be seen as a wise move for the new Uber, given it is burning so much money in the core business already.