Not sure if the S4 C of G is lower than the Aero as i have only seen the aero from a few feet away and not had it in my hands
but i am guessing the aero c of g will change as Lee's car has a milled aluminium chassis and other aluminium parts, were as the production car i understand will have a graphite/plastic moulded chassis and parts.
There is 10 grams difference in weight from right to left, and front to rear is interesting but i don't want to give everything away lol.
If you are looking for a complete car drop me a email