Board Thread:Game Discussion/@comment-28412524-20160728062309/@comment-4457373-20160729044101

I did my own analysis, too (after buying one gold upgrade, unfortunately) and found that even with the discount, upgrading the 2015 911 was cheaper because of its current PR. As others mentioned, it will depend on how upgraded your own cars are.

My current Vantage GTE: 77.9

Gold to reach PR 85+: 338

My current 911 RSR (2015): 82.8

Gold to reach PR 85: 300