I am in euriope and difference is like used 410 with electronics, lipos, parts and 3 sets of wheels for 300Eur and new 410.2 is like 430Eur new kit. As for 4-6 track days a year it makes me think which one to choose. But if 410 is much less reliable (I hate repairing on track days) then it seems to be solved. Please correct me.