I bought this car at the beginning of October 2016. I was searching for months for the right E39 540i or m5, this one had a good amount of mods on it and I couldn't turn it down for the price. Frank Smith from Tuning-tech in crofton, Maryland tuned it to run on 11lbs of boost. It has so much done to it that I don't even know what to do now. Stay tuned for the future to see what I can do with this beautiful beast :)