Tesla's European sales have plummeted for the fifth consecutive month in May, despite a booming EV market. Discover the reasons behind this surprising decline and what it means for the automaker's future.

Tesla’s (TSLA.O) new car sales in Europe fell 27.9 per cent in May from a year earlier even as fully-electric vehicle sales in the region jumped 27.2 per cent, with the US EV maker’s revised Model Y yet to show signs of reviving the brand’s fortunes.