Talk:McLaren F1 GTR Championship/@comment-26006529-20170306161540

I am conflicted whether to stop at 25% or go for the full 100% completion.

I have every car, so the F1 GTR will not get me any further in the game (but far, far from 100% completion). On that end, upgrading gets me no further.

On the otherhand, if I proceed (and I can easily afford to spend the GC due to long time efficient farming), having a highly updgrade F1 GTR may help me mightily in a WTTT. And this is a pretty rare case where upgrades are effective on a discount. How often do you get to upgrade for 66%-ish off full cost?

I've read many comments on folks stopping at 25%. Any thoughts on going further to 100% with the PR77 upgrades?