Musk Promises $25K Tesla

On Tuesday, Elon Musk ended Tesla's big battery event with some big promises about the pricing of Tesla's future cars.

He also announced a new ultra-fast version of today's Model S.

CNN reports that Musk promised a $25,000 Tesla electric car that would be available in about three years.

That would be much cheaper than any car Tesla has made so far.

Tesla fans are cautious as Musk has a history of sometimes under-delivering on promises, or even not delivering at all.

Tesla promised a $35,000 electric car, the Tesla Model 3, but even then the Model 3 was only available at that price for a short time.

On Tuesday, Musk also promised that the $25,000 car would be capable of driving fully autonomously.