Tesla tumbles as firm admits it has made just 260 Model 3

Worries about whether Tesla would meet its promises on production of its Model 3 mass-market sedan in the months ahead sent the electric car maker's shares more than 2 percent lower on Tuesday as those in rivals climbed. The moves also followed a series of announcements by rival General Motors on its own electric car ambitions, which included a promise to take'bold steps' toward the first completely driverless vehicles. Tesla strove to play down any longer term risks to the company's targets when it published delivery numbers on Monday that showed output continuing to rise but'bottlenecks' preventing it meeting its Model 3 targets. Tesla said on Monday its deliveries rose 4.5 percent in the third quarter from the prior-year period, but said'production bottlenecks' had left the company behind its planned ramp-up for the new Model 3 The first models of the 35,000 (£27,000) electric vehicle begin production this week. The five-seat sedan will travel 215 miles (346 kilometres) on a single charge.