Don't forget the Camry guide I made! (If you haven't taken a look yet: http://forum.imcdb.org/forum_topic-3288-Toyota_Camry.html )

Anyway, yes I think this is a wonderful idea! I would love to make many more guides as I pay attention to many year-to-year and generation-to-generation changes on most cars, especially ones no one else seems to care much about like Toyotas and Hondas. The problem is, to make a year-to-year encyclopedia for every car ever made would be a whole lot of data. Maybe a whole seperate site would be needed...