Tesla has canceled its affordable Model 2 car, which was expected to drive the company's growth into a mass-market automaker. The decision comes as Tesla faces fierce competition from Chinese electric-vehicle makers, who are offering cars as low as $10,000. The new plans call for robotaxis to be produced in much lower volumes than the projected Model 2, with Tesla's cheapest current model, the Model 3 sedan, retailing for about $39,000 in the US. Tesla shares were down about 3% in early afternoon trading after the Reuters report.