The Olympics Edition e34 is a real car. Only a few things that made it different from the normal '95's including the wheels and green piping on the seats (visible in the pictures). That's a real description of a real package that was offered. That said, it's not a package that adds a lot of value, unless maybe you were a part of the Atlanta Olympics? It's a pretty normal car and should be priced like any other 525i with similar issues.
One interesting note about the maintenance. If the owner's shop sold him on a timing belt change for that M50TU, then what else was done that wasn't needed? More importantly, what was *not* done that *was* needed?
--Micah O'C
'17 M2 6MT, Mineral Grey
'04 330i ZHP
'88 M5 2791445
'92 M5T BL01001
formerly '90 535iM, '92 525iT