Translation of mecánica

The lack of political stability is not new to South America and I believe that the different views among them added up so much that conflicts are not avoidable anymore. Look for example what happened.
I also made a reservation for a daytrip in the nearby mountains. We went in the early morning and met again near the Huanchan road, close to the office. A ten-seater picked us up and we left.
He started to shout and to curse at my wife and me, but we did not give him additional money. I am convinced that he knew exactly that he did not take us to the original hotel but to a fake one.