What was the initial impact of NAFTA on the us and Mexican automobile markets? Who benefited most from this?

How did the impact of NAFTA start to change location by automobile manufactures over the years? How did this start to impact automobile production in the Mexico and the united states?

Mexico has been very proactive in signing regional free trade deals in addition to NAFTA. How has this strategy impacted automobile consumers and producers in Mexico? How has it impacted automobile consumers and producers in the united states?

What lessons can united states policy makers draw from the growing success of the Mexican automobile industry that can be applied to future free trade deals, such as the deal currently being negotiated between the united states and the European union?