Mercedes-Benz has joined its Chinese joint venture partner Geely's legal challenge at the Court of Justice of the European Union (CJEU) against EU tariffs on China-made electric vehicles, a company spokesperson said on Tuesday.

Elon Musk’s Tesla and Bayerische Motoren Werke AG (BMW) have sued the European Union’s (EU) executive, adding to a flurry of cases by Chinese carmakers attacking tariffs peaking at 45% on imports of electric vehicles (EVs) into the bloc.

Tesla is taking the EU to court over tariffs it imposed on imports of electric vehicles from China. The European Court of Justice published the case on its website on Monday morning. The US company follows BMW of Germany and several Chinese carmakers in filing claims.

However, Trump's threats have changed over time, ranging from small levies to ones exceeding 200%, leaving other nations and businesses unclear of what is to come next. Here is a roundup of Trump's trade-related threats.

Tomatoes, T-shirts and cars are among the vast array of goods that could become pricier if tariffs pledged by President Donald Trump go into effect.

President Donald Trump has been talking about tariffs for so long that it feels like we know exactly what’s coming. But we kind of have no idea.