The Concept 4 design has divided show-goers in Frankfurt with its interpretation of BMW's traditional kidney-shaped grille, which the automaker says references sports cars from its past.

Germany's VDA industry association is switching the venue of its show from Frankfurt to either Berlin, Hamburg or Munich as it attempts to reverse flagging interest from automakers and the public.

Europe's biggest auto show could move to Berlin from Frankfurt as organizers consider ways of boosting flagging interest from automakers and the public.

The 2019 Frankfurt auto show was a shadow of its former self. That's a sign of a continent -- and a global industry -- in a state of flux.