BMW, short for Bavarian Motor Works, is a German automobile manufacturer headquartered in Munich, Bavaria. World-renowned for their luxury and safety standards, BMW cars are a hit in both new and used car markets in the US and other parts of the world. The brand has also been associated with legendary motor sporting events such as Formula 1 and the Isle of Man TT. If you too are a BMW fan who is considering used BMW cars for sale, here are three things you should keep in mind when making a buying decision.