I would say the one made in Germany is higher for a quality build vs the same one that's made in Mexico. Reliability is about the same, I would assume. Most cars are assembled as various components in different countries, and they assemble final result in a specific country. Volkswagen final assembles them in Mexico because it's a lot cheaper to manufacture there, as opposed to Germany. You gotta pay the Germans a lot more Euros than the same worker in Mexco. 

I deleted your follow-up question because your system is slow to respond sometimes, the system posts the question as many times as the button was clicked. Your titles were no different, so I assumed it did it again. Happens all the time. If you could, type another question with a different title. 

Thanks.