Can I make a confession - I too had an E39!!!! ...... I know, I know!
Mine wasn't an M5 but a 530d M-Sport in that stunning blue they did. It was buetiful to look at and drive, awful interior and stereo but lovely car. Could never get let out of junctions though and it made me consider a career selling drugs and organising prostitution rings.....
Cool car it was, and GREAT fun on roundabouts, you could hold a HUUUUUUGE slide with ease on the exit!
I did eventually see sence though and thats when I bought the A8 4.0TDi.
