Quaife is coming out with a new model 6 speed including a large price reduction. The list will be $9750 less 20% if ordered before November release date. The official word is not out but the GTD Club visited Quaife and found out the scope. You can see photos of the unit here:
http://www.gtd40club.co.uk/images/Qu...aife_visit.htm
I expect this will go along way to running higher HP/Torque motors in GT40's.