Do Audi, Mercedes Benz, BMW belong to the same firm?

No, all of these three are different company. This is the ownership of different brands. All of them in bold are different independent companies. BMW owns: Mini and Rolls Royce. read more

No these three companies doesn't belong to the same firm. BMW is the only independent company. It's also the parent company of Mini and Rolls-Royce cars. Well Rolls-Royce had a bit complicated history with Volkswagen and BMW. Mercedes-Benz and the Mercedes-AMG is a automobile division of German company DAIMLER AG. Audi is owned by Volkswagen. read more

BMW has produced many successful luxury cars and is still one of the big players in the market. The firm also owns the Mini and Rolls-Royce brands. Daimler AG is a German bus, truck and luxury automobile manufacturer, headquarted in Stuttgart. Daimler AG is the producer of the iconic Mercedes-Benz cars. read more