Tesla CEO Elon Musk’s imagination knows no bounds. According to a recent interview with The Independent, the entrepreneur’s latest fascination is building a Jetsons-era flying car.

As he told the publication over the weekend, it’s something he’s thought about quite a lot. Musk said they could definitely make a flying car – that’s not the hard part. The challenge is trying to make a flying car that is super safe and quiet. If you build a howler, he said, it’s going to make people very unhappy.

Musk may have the capability to build the vehicle but admitted the project would be “just for fun” right now.

This isn’t the first off-the-wall idea that Musk has come up with in recent memory. Late last year, it was revealed that he was the “mystery” buyer in an auction for a piece of James Bond movie history – the Bond Lotus submarine from The Spy Who Loved Me. The car sold for $866,000.

The executive said at the time that he wanted to retrofit the vehicle with a Tesla electric powertrain and make it into a real-life submarine car capable of driving on roadways. It actually wouldn’t be too much of a stretch to pull off the feat as Tesla’s first car, the Roadster, was based on a Lotus Elise. No word yet if he’s actually moved forward with the plan since then, however.