That means their chief owner is Chinese, not that those companies or their cars are Chinese. Rams and jeeps aren’t Italian because then owners of Chrysler are..
The tariffs apply to where the vehicle is manufactured, and many of those vehicles are manufactured in China.
That said, I know Volvo Polestar found some loopholes in the law. I think they’re able to dodge the tariff by importing the vehicles to the US, then exporting them Canada / Mexico. Being an exporter somehow helps them work around some tariffs.