Board Thread:Questions and Answers/@comment-24782502-20140406140604/@comment-115.242.207.118-20140429042729

Unlikely. There are 3 showcase events that you cannot participate which means you'll have to get a top 3 finish in most other events. Towards the end of the series, the PR requirements for Cup races are likely to be higher than the PR of a fully upgraded 918. Moreover, the cost of upgrading 918 beyond the initial upgrades would be in the same league as the cost of the next car in the series, not to mention wasting the gold coins on upgrades when you can avoid spending it.