you can check out here - http://www.tamiyausa.com/articles/fe...article-id=415
- its an article on Tamiya USA about the differences in the 2 chassis
from what I understand, most (if not all) of the enhancements are in the suspension - the chassis is the same across all the 'versions' of the TT01 platform...you'll probably have to get 'creative' when you mount that speedo...doesn't seem like it was purely designed to fit within a tub chassis'ed touring car
so you might wanna read the article and see what the real differences are
plus you can check out here - http://www.tamiya.com/english/rc/manuals.htm
- to download a copy of a tamiya manual for both the 'standard' tt01 and the tt01e chassis and see part numbers and whatnot for what you are trying to do...