Here's one published magazine (BIMMER MAGAZINE - April 2009) article documenting BMW collectibility.
"Since we can't go back in time, we decided to take a look at the vintage and non-current BMW's that are still available for reasonable prices but which have the potential to appreciate in value over the next 20 years.
Though we weren't necessarily looking for the next generation's 328s and 507s, rarity was a criterion even though few BMWs are truly rare. Most were mass-produced for series production; as vintage car experts Michael Sheehan and Kerry Morse told us, the M1 is the only post-war BMW (beyond the 507 and 503) with pebble Beach potential. Not surprisingly, it made our list even though prices have risen substantially over the last few years.
We concocted our list after consulting with nearly everyone on the Bimmer staff, plus the aforementioned experts and BMW of North America's Larry Koch (who cares for the North American vintage fleet) and Rob Mitchell, former BMW NA corporate communications director and lifetime BMW enthusiast. Since the same cars turned up on nearly everyone's Top Ten list, we think we got it right. If you think we missed a future collectible, however, please let us know."
The short-list (in no particular order or rank):
1.) 1600 GT
2.) Z3 M Coupe
3.) 2002 Turbo
4.) Z1
5.) E30 M3
6.) M1
7.) 3.0 CSL
8.) 3200 CS
9.) 850 CSi
10.) Z8
The "Not-Quite-Collectibles" but a few more to consider:
-3.0 CS and CSi
-2002tii
-M635CSi
-E30 325is
-E36 M3 LTW
