Hi there, the first part of the focus on the BMW F1 cars is online with a close up on F1 Turbo engines and Brabham BT52, F1 world champion in 1983 with Nelson Piquet
Thanks to Woobiee, member of this forum, for its photo in the Zentrum museum.
that's here :
http://www.gurneyflap.com/focusbmw.html