"Mid-Mexico is growing by leaps and bounds," said Michael Robinet with IHS Automotive. "Mid-Mexico could easily push 4 million units per year by the end of this decade."
Nissan is currently the largest auto producer in Mexico, building 684,000 vehicles in the country this year. That leads Volkswagen and General Motors who also have large footprints in this country.
Ghosn curbing electric vehicle estimates
Nissan CEO Carlos Ghosn is opening the facility in Aguascalientes as he pulls back estimates on how quickly sales of electric vehicles will grow worldwide.
After initially setting a goal of Nissan/Renault selling 1.5 million EV's by 2016, Ghosn is now dialing back his forecast dramatically.
The CEO said he now expects Nissan to have EV sales of just 500,000 by 2016. The bulk of those electric vehicles have been the Nissan LEAF. So far, about 120,000 LEAF EV's have been sold.
This year, LEAF sales in the U.S. are up 166 percent, topping 18,000. Sales of the electric car have picked up since Nissan cut its price earlier this year to spur sales.
—By CNBC's Phil LeBeau. Follow him on Twitter @LeBeauCarNews.
Questions? Comments? BehindTheWheel@cnbc.com.