I havenīt had a peek underneith the shells of these. I heard from someone else the motor is way to the back and it uses a stick pack.
What I saw myself was that first of all, there were quite a few of them running about. On the outside it was clear to see that they ran more caster, they seemed to have more kickup, at least a few had a brass rear suspension mount to move the weight rearward... They go well but you can assume that this is only the start for Xray and they will use data from their chopped and modded XB4 to optimize the car for indoor use.
Who knows, they might consider a mid-motor with the option to mount the motor parallel or perpendicular to the driveshaft (much like the Awesomatix)
