This is occurring because the ATTESSA is seeing the rear wheels turning quicker than the front (due to the smaller rolling diameter of the rear wheels). So at 100kph, this difference has increased (with speed) therefore the front wheels will have even more drive to them.
BTW, my favourite wheels are BBS LM's, LM GT4's, AME Modelart, TE37's RacingHart CR, and anything deep dished and star-shaped.