It's not pointless at all. The car needs wings to become a glider. It doesn't need the fans for downward force or any of the high speed stuff. You take the car as high as you can and glide down. So it would be an airplane first and a car second. That would be seriously cool. The military would use it too. An airphibious/wingsuit vehicle. It could also have a drop-out seat/s for skydiving out of or doing air drops. For landing, another central wheel can be deployed to absorb the main bump or the existing wheels are extended further down. If there's a problem mid-flight there is an emergency chute as well, or can be used if wings not fitted or used.

It could also be made into a water/air vehicle instead and useful for getting over rough seas or air-docking with superyachts or destroyers. Floating/inflatable solar panels would be great too. Another interesting use case would be for airplane passengers and their baggage to leave a plane without the plane actually landing. The landing car could re-dock with the plane on its return flight. That'd be tricky, though.