Talk:Front-Runner/@comment-162.97.179.26-20160503180620/@comment-27123099-20160503181550

Brakes and Tire&Wheels each have a GC upgrade followed by a R$ upgrade which will allow you a decent increase in PR while only spending for 1 GC upgrade for each (assuming you are not limited by R$).

Additionally, Suspension has only a single GC upgrade, the 3rd and final one, so that may be an option as well.

However, Engine, Drivetrain, Body, & Exhaust all have 2 GC upgrades in a row. But, depending on how FM sets up these final days, it may be necessary to upgrade further in order to meet the goals (which I presume will include a top speed goal that will be beyond what just R$ upgrades will provide).

We really don't know until we see the challenges, but if I were to focus on GC upgrades, I think Brakes, Tires&Wheels, & Suspension would be my first choices for the reasons I stated above. If you did all 3 of those, that would be 180GC.