I just recently got a 1 year subscription for my sl600. I felt it was well worth the $25.00 for the late model 129's (mines a 97). Covered ADS and a few other things I was looking to nail down.
not sure about the 140's though.

for what thats worth.....

CR

97 SL600
93 750il
77 630csi
70 R/T SE Charger
68 Corvette Roadster