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.