DIAGRAMS! The flying cars Google's cofounder has spent $100 million building

Google cofounder Larry Page has secretly spent more than $100 million of his own money building flying cars, according to a bombshell new report from Bloomberg.

The billionaire CEO of Google parent company Alphabet has funnelled cash into two different companies working on the space-age technology - while working so hard to keep his involvement a secret that employees of one of the companies wouldn't even say his name.

One of the companies, Zee.Aero, was launched back in 2010. It is based in Mountain View, near Google's offices, and has nearly 150 employees. It even has two prototype vehicles that it tests regularly.

Thanks to a series of patent filings, we can see the kind of flying car designs that the Zee.Aero has experimented with. Bloomberg reports that it is moving away from these towards a "simpler, more conventional-looking design" - but the diagrams still give a glimpse at what's inside the incredibly secretive project.