Yea bud,
The sad thing is, at 120k you are almost entering E39 //M5 playing fields.
While the car is worth that at then some more, you simply wont get it which is heart breaking.
Same reason why I cannot get more then 140k for an E65 750i 2006 model fully specced.
Same reason why I cannot get 120k for a E60 530d in immaculate condition.
There are two things counting against your.
1. The age of the car, meaning that you cannot get finance, meaning that the type of guy that has the cash laying around for this type of car would not consider it, as he could buy something else for the money.
2. The pre-conseived notion, that OMG its a V8, so it MUST be heavy ony fuel, and it it breaks its going to cost you gazzilions, which is moronic, becaase a well driven V8 BMW with equal the consumption of a 330i, i have proven this by my average 12l/100 consumption on my 540 with manual.
50 to 60k is what market percieves that its worth, which is the saddest thing on this planet, cause the car is worth FAR MUCH more then that.
Now I would give you 60k in a heartbeat for this car, but quite frankly, have more profitable things I can do with 60k, which is exactly your problem, everybody feels that way
Keep her, she aint worth squat, but in the same breath, people would go pay 50k for a 1993 toyota conquest....
Boggles my mind...
A collector will pay you that 120k, cause he knows what its worth, but that quite frankly is 1/100 people viewing this car...