https://www.cnet.com/roadshow/news/goodyear-flying-car-tire-geneva-motor-show/

The most clever part of Aero is how the wheel's "spokes" are also the propeller's blades. Pitched, curved and manufactured precisely, they would seem to save a lot of space, expense, and articulation headaches on a flying car.

The rubber that wraps around those blades would be solid, rather than an air-filled tire that would deform and disintegrate at aeronautic RPM. But without a pneumatic cushion Goodyear's material scientists will have to pull some all-nighters to formulate a material compliant enough to cushion the ride on ground while also tough enough to protect the critical wheel/propeller structure. I wouldn't want to get aloft only to find out I have a cracked prop blade because I curbed it downtown an hour before.