Alef Aeronautics, a San Mateo-based startup founded in 2015, has begun producing what it describes as the world’s first road-legal flying car. While autonomous ground vehicles continue to face reliability challenges, Alef points out that controlled aerial mobility is both feasible and practical; the company’s original goal of building a flying car in six months proved unrealistic, but steady development resulted in a full-size prototype by 2019 and the start […]