Anything to avoid building reliable clean and functional public transit.
Seriously we already have a futuristic form of transportation that can move you from one end of the city to the other in a reliable way, that does not involve traffic or anything on the surface. It's called the Subway. You build it once and it's pretty much good forever.
I have seen so many techbros try to "solve transportation", and every idea always fails in comparison to building a train line.
Go ahead, you can go use the "futuristic" hyperloop in Vegas right now. You wait 20 minutes to get into a car which takes 20 minutes to get about 6 blocks ahead.
