Is getting "credit" for building the autobahn a real point of contention in Germany? A more meaningful discussion might be whether Germany should remain as part of the Eurozone? Considering they are not profligate with their debt, and profitable industrially, they need the Eurozone like Europe needs a meteorite to fall from the sky, in my opinion. It might be "just desserts" if Germany left the Eurozone, so France can care for all the profligate "industrial orphans" in Europe.
Why doesn't anyone let the little secret out that the German society knows how to effect prosperity? What's wrong with anyone admitting that Germany is better at "winning the peace" than the rest of Europe? It wouldn't even be shadenfreud, just the truth.