Abstract
To promote environmentally friendly Electric Vehicles (EV's), we have entered an EV converted from a gasoline automobile in the Shikoku EV Rally (since 1999) and collected data for the purpose of improving technical performance. Also, since 2002 we have participated in the Shikoku Ishu Ekiden , a long distance rally around the island of Shikoku and thus have acquired more data for analysis. Using the analysis of the past data, in the 2003 Ekiden a method simulating rally performance was established to modify clearer, and the actual rally results with that of the rally simulation were similar. Our EV received first position in the class competition as well as in the energy efficiency category.
