China's BYD has overtaken Elon Musk's Tesla as the world's biggest seller of electric vehicles (EVs), marking the first time it has outpaced its American rival in annual sales.

Tesla car sales dropped by nearly 9% in 2025 to 1.64 million vehicles sold worldwide, the carmaker said on Friday - its second consecutive year of falling car deliveries.

Those figures placed Tesla behind BYD, which said on Thursday that sales of its battery-powered cars rose last year by almost 28% to more than 2.25 million.

The US firm has faced a tough year with a mixed reception to new offerings, unease over Musk's political activities and intensifying competition from Chinese rivals.

Tesla's car sales fell 16% during the last three months of 2025. The drop was partly due to the repeal of a government subsidy that had helped knock as much as $7,500 (£5,570) off the price of certain battery electric, plug-in hybrid or fuel cell vehicles.

Wall Street analysts have recently lowered their Tesla sales estimates for 2026, signalling an increasingly gloomy outlook.

Chinese firms such as Geely, MG, and BYD - now the country's largest electric car company - have put pressure on Western rivals by pricing their vehicles below established brands.

In October, Tesla responded by launching lower-priced versions of its two best-selling models in the US in a bid to boost sales.

Musk, who is already the world's richest man, is tasked with significantly boosting Tesla's sales and stock market value over the next decade to secure a record-breaking pay package. The deal, which was approved by shareholders in November, could see him getting a payout of as much as $1tn (£740bn).

As part of the agreement, Musk also has to sell a million humanoid robots over the next ten years. Tesla has invested heavily in its Optimus product and self-driving Robotaxis.

Despite BYD's rise in recent years, its sales growth slowed in 2025 to the weakest rate in five years, in part due to fierce competition in China, its key market.

And despite BYD surpassing Tesla in car sales, the US firm has remained more profitable in recent quarters.

Still, BYD remains a global EV powerhouse as its prices often undercut rival carmakers.