Thread:QuickNick/@comment-26829117-20170726202536/@comment-26829117-20170729104946

The rules for cheapest car are quite straightforward really:
 * 1) Calculate delta upgrade in gold and R$ from previous series
 * 2) Set free flat to true if car is cheapest to upgraded further in subsequent series
 * 3) Order by free flag (true first), gold, R$ - first car is cheapest