Tesla CEO Elon Musk showcased a long-promised robotaxi without a steering wheel or pedals at a much-hyped event on Thursday, but lingering questions about the company's production timeline and the quality of its self-driving tech has left investors uncertain.

Tesla’s stock price was down 8% early Friday after a Thursday event where company CEO Elon Musk unveiled a new two-door electric vehicle dubbed Cybercab that is designed for fully autonomous operation, a feature most notable in the car’s lack of steering wheel or pedals.

Tesla CEO Elon Musk has unveiled the company's latest vehicle, the Cybercab, a fully autonomous self-driving car with no steering wheel, accelerator, or brake pedal. Musk showcased Tesla's latest innovations at the "We,