At a dockyard in Rotterdam or Antwerp, thousands of hybrid cars from China could soon be sitting idle, blocked not by tariffs but by a number: 350,000. That is the annual ceiling the European Commission has set on imports of Chinese battery and plug-in hybrid vehicles, confirmed this week as part of a four-year agreement reached in Beijing. The cap, which takes effect in December, comes as imports have nearly tripled, with around 800,000 such vehicles expected to be sold across the EU this year alone. The scale of the shift becomes clear when the numbers are compared.

China's hybrid exports to the EU reached €6.7bn in the first half of this year, up from €2.2bn over the same period last year. Brussels hopes the quota will cut China's current 6% share of the EU market roughly in half.

Crucially, the measure is being imposed under World Trade Organization safeguard rules rather than anti-dumping procedures, allowing it to take effect without lengthy investigations. Cars built by Chinese firms inside the EU, such as in Hungary, will be exempt, while EU manufacturers producing in China will not be. "We will continue the dialogue on some products… this is by no means the end of the story," one EU official said, pointing to ongoing talks covering chemicals, renewable energy and furniture. In exchange, China has agreed to lower tariffs on European auto parts and halve duties on olive oil, footwear and ice cream.

The deal reflects what officials describe as a broader "paradigm shift" in Brussels, where the EU's £1bn-a-day trade deficit with China has fuelled fears of deindustrialisation across European manufacturing. Rather than simply pushing for greater access to Chinese markets, the EU is now weighing new defensive tools, including a proposed "kill switch" that could block goods entirely in a crisis.