Hi,
The biggest difference between a 1993 Solectria Force with a lithium ion battery pack and a 2011/12 Nissan Leaf OTHER than the price is the crash worthiness. Which is really the reason for my biggest hesitation in buying the '93 Force.
I also found a similar '93 Force owned by a fellow who was kind enough to answer my questions over at the Yahoo Solectria group:
Charles' 1993 Solectria Force
Notice the subtitle "Problem Child"... Am I mistaken in thinking that the original motor and controller in this Force being DC? He has also replaced the controller. My doubts are creeping in...