Talk:List of all cars (fully upgraded)/@comment-71.228.13.110-20150630204942/@comment-208.184.141.147-20150630211024

If you mean the page that shows the PR value of upgrades, see http://rr3.wikia.com/wiki/RR3_Wiki:Upgrades_Section_(Classic_Version)

I would not call it unreliable. Rather, it is not 100% precise. The PR impact of upgrades my be .1 more or less than what is shown depending on what other upgrade have been done previously. I think this is because the game calculates the upgrades to a further decimal point than what is shown and the issue relates to rounding. Others have suggested there is a more complicated formula that explains it. Either way, it is (generally) reliable if you keep this caveat in mind.