Customers have favoured Chinese EVs because of their competitive prices and in some cases in protest against Musk's political activities.

Tesla's sale of new cars in Norway skyrocketed 213% in May from a year ago, bucking a downward trend across Europe. Elon Musks U.S. electric vehicle maker has suffered from a sharp decline in European sales amid reputational damage.

Meanwhile, in Norway, Tesla sales were up an astonishing 213 percent year over year in May. One key difference: Norwegian buyers have begun receiving the refreshed Model Y, while the model will only start to be delivered in major countries such as Germany, Italy, France and Great Britain in June.