Well, then you get something like the Twike (it's actually called the Twike 3 ... a bike nor a car, but something in between. It's also terrifying to drive, as YouTuber Aging Wheels found out ...
YouTuber Aging Wheels bought one ... the Twike (it's actually called the Twike 3, but we'll stick with Twike for simplicity), which is neither a bike nor a car, but something in between.