Dreame is no longer planning to build the electric hypercar it unveiled in April, which it had said would have solid rocket boosters to achieve 0-60mph in 0.9 seconds. It’s also shuttering the rest of its car-related ambitions.

As the trend continues of basically every company on the planet saying they’re thinking about building an electric car, Dreame, a Chinese company known for its robot vacuums and other home appliances, announced starting last year that it wanted to build luxury electric hypercars.

Dreame went on to unveil its first hypercar at CES this year, and even said that it plans to make an SUV to compete with the Rolls Royce Cullinan.

But then its announcements got even more wild. In April, it hosted an event in San Francisco to describe the future of its brand and products, and one of the announcements included a rocket-powered version of its hypercar.

The idea was to use presumably single-use solid rocket boosters to achieve otherwise unachievable performance. Many cars are currently “traction-limited,” which means their tires literally could not accelerate them faster even if you added more power.

But alternative methods of thrust, like rockets, could get around that traction limit. This is the idea behind the next-gen Tesla Roadster, or at least it was, until Tesla CEO Elon Musk stupidly kept saying the car would be able to “fly.”

So Dreame’s idea was theoretically sound, if completely impractical. Solid rocket boosters would have to be recharged whenever they’re used, so, not really that useful.

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