Geez guys, take a valium. Yes he may be jerking our chain but I believe he is perfectly sincere AND PERFECTLY REASONABLE
Lord, he obviosly has a SPORT MODEL duh, which could quite reasonbly be called a M something. Yes he has low profile tires on sport wheels and a big fat M on his steering wheel
JUST LIKE MINE
He is only mistaken about the "coupe" part, but give him a break, "coupe" is a confusing word to lots of folks, and there are FOUR DOOR COUPES!!
It now more a reference to frameless door windows.
Anyway you have a 528i sedan with "M" sport package (the only sport package for that year and model)
Your car is also called a "five series" as in "I have an 01 five series"
and finally insiders call it an E39 which means a five series of the body type made from
95 to 03 or so. Try wikipedia for the history of the 5 series and WELCOME.
Buy some Nomex underwear and post anytime!