WTF, Trump is the one that actually signed and put into law the United States-Mexico-Canada Agreement (USMCA) 2020. He literally put laws into place solidifying cars made in Mexico wouldn't have tariffs.
The article makes a small references to this:
"Many automakers now build smaller, lower-priced vehicles in Mexico — facilitated by a trade agreement Trump negotiated while president — or in other countries because their profit margins are slim. The lower labor costs help the companies make money on those vehicles."
The reason cars from Mexico don't have tariffs today is because of Trump's law.