> Maybe we could build some sort of catapult setup to throw the cars across the valley

This was played for laughs by German satire news website "Der Postillon" (like The Onion, but in German): "Department of Traffic to replace ramshackle bridges by jumping hills"

Nicely photoshopped picture at: https://www.der-postillon.com/2014/11/lander-ersetzen-marode...