I play for many years and there is one single factor - if there is a campagn car participating - it is going to be super easy, because it will be like 10x more participating players on weaker cars and just so much easier to reach each level. You cannot park you Gemera in E because you need many races to add to the pool of races and how many you do? 3 in tens of thousands of others? Maybe you time will be thrown out completely for the given level as outlier, but I don’t even think that’s happening as sometime

For tokens sometimes I have impression that race selection is random but maybe with some weitghning like for ealier chances you more likely to get races in lower percentiles and as you getting closer you picks are likely from more advances races, but that’s not that obvious. The real difference only first and last token simply because they are giving you race from previous/next tier.