I don't think Aston Martin will take to the skies first. From what I can tell they have an experimental aircraft that has not started FAA flight testing. Getting a personal vertical take-off and landing aircraft certified for urban airspaces will probably take a decade to get certified here in the US.
But the tech is here now. In fact, there's a company, Cora Aero (formerly Zee Aero), has an aircraft near ready for taxi service.
There are many other companies out there developing similar aircraft. They will be autonomously piloted, and only available as a taxi. It's highly unlikely you'll ever be able to buy one. Companies like Uber will be the operators. They will only be cost-effective to move people short distances. It's ideal for situations like getting people from Wall Street, NYC across the Hudson on Friday afternoons when traffic is horrendous. Crowds of bankers can afford to pay 10x the cost of a taxi for a short flight.