Shy, so many questions you are not living up to your name
You best bet regarding a full car is speak to my boss, Jonathan Clark who I believe is Old Timer on this forum. Failing that log on to the Atomic Carbon website at
http://atomic-carbon.gforceimages.net/ where there is futher contact information.
I don't know a lot about the Aero, apart from it winning the first National, so no comment on that one. Chris Doughty wasn't that far behind with his S4 finishing 2nd.
Like wise with the battery positioning, the advantage of running them 4x2 is that the centre shaft can run from the spur gear to the gear box completly straight making it more efficient compared to the bend in the Aero's. I would think you also have to remove the centre shaft on the Aero to get the cells out where as the S4 batteries can be simple lifted out.
Because the weight is more central I have found that when the car roles over it is more likely to land back on it's wheels. It's not a slice a bread that always lands butter side down
