OK it's not exactly an article but I think this is the best place to save this one: I have a scanned copy of the big Alpina book combining the owners' handbook and tech specs for the following models: E21 B6 2.8 ; E12 B7 turbo ; E24 B7 turbo coupé
The manual is split in two .pdf docs:
Part one
Part two
Thanks for Arnold D for making this document available!
