The Canada-US Auto Pact of 1965 effectively integrated automobile manufacturing between the two countries. This pact removed the previous tariffs and added certain guarantees. This effectively created one protected automobile market between the countries.

This is, of course, exactly why Canada joined the US in 2024 tariffs against China. We had all one market to protect.

> Canada found out it doesn't have any leverage over China in this so-called trade war,

For my perspective, this seems hugely beneficial to Canada in the short-term. It might even be beneficial to Canada in the long-term if the US permanently destroys the ability to build automobiles for the unified North American market in Canada.