Tesla’s reveal of a robotaxi designed as a low-slung, two-seater, sporty coupe - quite the opposite of a typical taxi with room for several passengers and luggage - flummoxed investors and analysts.

But in true Musk style, he skipped over expectations of how a two-seater robotaxi would serve the needs of families headed to a restaurant or to the airport, or if he expected these to appeal only to a niche clientele.

Investors jeered the design and the lack of financial detail, with Tesla stocks tumbling 9% on Wall Street on Friday.

“When you think of a cab, you think of something that’s going to carry more than two people,” said Jonathan Elfalan, vehicle testing director for the automotive website Edmunds.com. “Making this a two-seat-only car is very perplexing.”