And then it wants to introduce an entirely new rule about the wages paid to autoworkers. Specifically, it wants to require a certain minimum percentage of a car — 40 per cent, according to several U.S. news reports — to be made by workers earning at least $16 (U.S.) per hour.
That’s a problem for Mexico. The average wage for Mexican workers in car assembly plants is under $8 per hour, and under $4 per hour for workers in parts plants.
https://www.thestar.com/news/world/2018/05/11/nafta-talks-focus-on-low-wages-for-mexican-autoworkers.html