http://a15ff11300g.sakura.ne.jp/catalog ... logue.html
Includes "Special Stage" rally magazines covering the Safari Rallys of the 80's. Not enough engine bay shots though. Twin carbs visible... First issue shows some mechanical details, seems to be less each episode.
Plus brochures on pretty much every model and every variant, Japanese and American.
Some quick picks:
From the yank files.

From the Special Stage.

Wide body



Group A Leone
