Alef Aeronautics is one of several Bay Area companies competing to combine the two in the automotive market with flying vehicles.

flying cars have two opposite sets of requirements. Aircraft need to be light and narrow in order to be aerodynamic and generate lift. Cars, on the other hand, have to be wide and heavy enough to ...

As futuristic as the concept sounds, the Bay Area’s entrenched transit problems — fragmented infrastructure, heavy congestion and high costs — raise questions about whether flying cars will ...