Talk:Coupé de Grâce/@comment-28753807-20160830023445/@comment-28753807-20160902074146

I can see that there would be more options than: R$ only gets you to X tier and X% completion. There are different ways to upgrade cheaply, to win the car.

And yes, something like: Tier ? and ?% can be reached with car won with PR XX.X and upgrade pattern of 9999999 costing ? GC.

To narrow it down, I'd limit it to the cheapest upgrade pattern to win. It seems a consensus is reached in the comments, as to the generally-accepted cheapest upgrade pattern, in advance of the event completion.