Talk:The 500 (v5.2.0)/@comment-116.48.129.17-20170425030838/@comment-27123099-20170425164604

According to this page http://rr3.wikia.com/wiki/RR3_Wiki:Upgrades_Strategy_For_100%25_Completion#Legend

The Porsche is the cheapest to upgrade for 100% in Racing Spirit, by at least 155GC.