Board Thread:Game Discussion/@comment-89.98.77.215-20150901125128

Something that i have seen a lot lately and i could not find any onfo on it here. Hence the new thread:

When upgrading a car I always plan ahead, trying not to spend too much gc and still aim at 100% completion. Planning ahead is impossible though, as PR values per upgrade vary. An example: I just upgraded the Spada TS towards PR67 to be able to complete the Spada series. Before completing the final R$ upgrade on the engine I needed 0.6 and that was fine as 14 GC on Brakes would get me there. But after the engine upgrade finished the amount for the Brakes upgrade was back to 0.5 suddenly! So I had to throw in another 16GC to reach PR67.

This has happened to me on many cars, sometimes the amount increases after another upgrade and sometimes it decreases. Is this a known issue (or feature)? 