Tesla CEO Elon Musk has made some wild promises in the past, but a new one about a flying car of the future is the wildest one yet. The entrepreneur announced on social media that the future Roadster will actually hover over the ground, an innovation that will take away the bumps on the road for millions across the U.S.

On Twitter, Musk shared a GIF of a hovering car and said that this is something the new Roadster will do in the future. The GIF appears to show the flying car from the late 80s flick “Back to the Future Part II.” While the Tesla car may not fly like the one in the movies, even a car with hovering capability will be a giant step forward in automobile innovation.

While this may feel like it is something straight out of science fiction, Musk is serious about bringing the product to the market. For readers who feel that the Tesla CEO may have been joking, he specifically said in another tweet that this is not a joke. “Will use SpaceX cold gas thruster system with ultra high pressure air in a composite over-wrapped pressure vessel in place of the 2 rear seats,” Musk explained.

According to a report by Electrek, Tesla is planning to bring this hovering car to the market by 2020. The car will be fully electric. The company is said to be trying to make this “the quickest and fastest production car on the market.”

While new innovations will be good for the company, the possible flying car may be well outside the budget of the average Americans. The products of the company are already pricey, and according to a report by CNBC, Tesla will stop selling the lower priced versions of the Model S and X from Monday.

The higher-end models of S and X come with a 100 kWh battery, and these vehicles will continue to be available for purchase. After the lower-end models get retired on Monday, the new starting price for Model S will be $94,000, and for Model X, it will be $97,000. The Model 3 with enhanced features like autopilot will set the buyer back by $67,000.

The decision to retire the lower priced models is expected to help Tesla reduce costs. The money the company saves with this decision can be used to help increase production for the other vehicles like Model 3.