People are sleeping on the car folding into a suitcase. You would basically never need to pay for Uber, Taxis, or rent a car again. Also you never need to pay for parking, and can now easily park in places with limited parking spots.
And it’s a discount hammer space option since you can fit a car’s worth of stuff in the car which is in your light suitcase. For some people that would be more useful than fitting an arbitrary amount of stuff in a car-sized space, since a car is relatively large and heavy on its own.
It says in the pic it weighs as much as a light suitcase