Login Tesla is slipping further behind Chinese electric car making rival BYD with new global sales data showing the Elon Musk-led manufacturer’s market share fell across the world including in its North American stronghold. The figures, compiled by analysts at Morgan Stanley, came as prominent analysts in the United States urged Tesla chairwoman Robyn Denholm to reign in the billionaire businessman, imposing limits on his political ambitions and requiring him to spend more time at the company. Loading... Paul Smith edits the technology coverage and has been a leading writer on the sector for 20 years. He covers big tech, business use of tech, the fast-growing Australian tech industry and start-ups, telecommunications and national innovation policy. Connect with Paul on Twitter. Email Paul at psmith@afr.com