The key thing that stuck out at me was to check the history of the Used BMW that I was purchasing. I found that I could find out the risk involved before purchase and choose the best possible deal for me. I had to do a lot of research on buying a Used BMW first and what to look for when I did find the car of my dream. I looked at the blue book value to make sure the price was not being over inflated. I checked the history of the car to ensure there were no wrecks to the car that were not visible. Lastly I needed to make sure there were no liens against the car.