Elon Musk pushed back the launch of the Tesla Roadster. Again.

• Elon Musk has delayed the Tesla Roadster release once again.
• Musk teased a potential unveiling of the Roadster in "a month or so."
• Tesla's Roadster has faced multiple delays after reservations first opened in 2017.

Elon Musk has pushed back the release date for the long-anticipated Tesla Roadster — and offered another vague timeline for its release.

On Tesla's first-quarter earnings call Wednesday, the CEO said the company might unveil its next-generation Roadster "in a month or so."

"It requires a lot of testing and validation before we can actually have a demo and not have something go wrong with the demo," Musk said. "But I think it will be one of the most exciting product unveils ever."

Musk said eventually the Roadster would be the only human-driven car in Tesla's lineup, adding that while he doesn't expect it to have a huge impact on the company's revenue, "it is very cool."

The Tesla Roadster, an electric sports car, has faced years of delays since it was initially made available for reservations in 2017.

Musk said in October the car could be unveiled before the end of the year, only to say a month later that the demo day was tentatively planned for April 1, 2026. In mid-March, Musk said it would "probably" come in late April, only to delay it once again.

Tesla beat earnings expectations on Wednesday, signaling a rebound in demand in North America. The company reported a 16% year-over-year revenue increase, beating analysts' expectations. Tesla also said it was planning a large increase in capital expenditures.

The stock briefly surged 4% in after-hours trading following the earnings report, but later dropped back down to about what it was at market close.