Well I am trying to understand the concept and apply it to my car as I am in the process of spending a fair amount of time and energy on the chassis, and looking to get it right (coilovers, adjustable front and rear toe, caster and camber)
E30 is trailing rear arm like Z3's, or is it semi trailing, I should know this I know the camber increases as you lower the rear..
I think with the front macpherson setup, there is limited camber gain however..
You are relatively local to me, so I shall try and set it up enough to drive it down to you guys for a full setup I think, inc rolling of arches and balancing of wheels (I think my fronts have been done badly.. Not helped by having to run spacers to clear brakes currently)