Both the old and new main chassis components are the same, 1.5mm thick CF. The new release has all of its parts made from the 1.5mm CF. This is especially criticial for the front lower suspension plate and top front deck. This should make the suspension do all the work and keep the front end chassis from having any lateral flex.

Of course if you're using stock motors, this isn't such a critical improvement. But if you're into the Nuke or V12 or R-tune........