AB: Differences Switzerland / Germany

I am travelling a lot in Switzerland and in Germany. What is very surprising to me is that the Swiss are heavily motorized compared to Germans. I always thought that a speed limit on the AB would lead to less powerful cars being bought, but in Switzerland it is really the opposite. From my personal experience I would say that up to 90% of customers in Germany use the four-cylinder, in which Schw On average, I see more than 50% larger motorizations. Do you have an explanation for this?