This suggests that the reaction of consumers to Mr Musk’s antics are only one reason for falling sales. An updated Model Y, Tesla’s best-selling vehicle, has just gone on sale. In preparation Tesla ran down inventory of the old model, crimping supply. Customers have doubtless held off purchases until the new car is available.

Tesla Takedown” takes aim at Elon Musk's actions for Trump administration outside new Portsmouth showroom before its grand opening event.