SAN FRANCISCO >> 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. CEO Elon Musk served up the cool design for the prototype of the Tesla robotaxi, dubbed Cybercab, at a much-hyped event near Los Angeles late on Thursday. These will go into production some time in 2026 and cost less than $30,000 a pop, he said.