I can't speak to car electronics design or anything about the capabilities of Tijuana or Ciudad Juarez, but your comment had me reflecting that in the mid/late 90s those of us who were in b-school went from all about Mexico to all about China overnight. With NAFTA et al, American manufacturing was going to be all about developing factories in Mexico and moving good back and forth between the US and Mexico for design and finishing. Then once China joined the WTO it was absolutely an instantaneous pivot to China instead. Maybe all that's old is new again?