Board Thread:Game Discussion/@comment-37524703-20181129151718

Unconfirmed, but all 3 upgrades should yield PR 92.9 when PR 92.4 is needed to finish this LTS. You will need to invest 540 GC and R$ 2.710.500

You get back 100 GC and R$200,000 from the Ferrari FXX K Evo Championship.

This means a net cost of 440 GC and R$ 2.510.500 