I was given a 1983 BMW 733i as a gift. I know nothing about this car and neither does the person who gave it to me. I have browsed this site and found links to sites used for decoding the vin. When I try to do this I receive no information. I went to OwnersCircle at BMW USA and I could not even register as a member because the site said that the vin number I listed was for a Delphin Gray 1983 BMW 732i, I was under the impression that this car is a 1983 733i. Can anyone help me learn more about my car or how to purchase this type of info. If someone would email me I can give the vin number and any other info I have. I love this car, but it needs some TLC and I have no idea how to give it. :) Thank you so much.