In Sweden last month, the BYD Atto 3 electric SUV outsold the Tesla Model Y.
In the first half of this year, Europe's best-selling vehicle overall was the Tesla Model Y.
However, the threat posed by Chinese automakers is already beginning to emerge.
In a mature European EV market in July, a Chinese EV outsold the Tesla Model Y.
The best-selling electric car in Sweden last month was the BYD Atto 3, also known as the BYD Yuan Plus in China and other markets.
In the Scandinavian nation, BYD sold 721 units of its small electric crossover, more than twice as many as Tesla sold (359 units).