User blog comment:Kuzz/The Pulse - Week 4/2015/@comment-25442963-20150125214637/@comment-26006529-20150125225233

The max PR value broken down by R$ and Gold is all I look for. That max PR value for R$ often lets you decide which car to invest in to complete a series or not. I won't finish a series off I have to spend, say, 100+ gold to get 33 back for finishing.

So I agree with kuzz.