China-EU electric vehicle spat

President of the European Commission Ursula von der Leyen announced that she would launch an anti-subsidy investigation into Chinese electric vehicles. This decision comes after EU data indicated that China's share of the new energy car market in Europe has risen to 8% and could probably reach 15% by 2025. In what ways are Chinese-made EVs competitive? Has China "kept the price artificially low" by subsidizing car manufacturers? How will this anti-subsidy probe affect China-EU ties?