Rewards: 74 Gold, R$74,000
Location: SEASON 1
Unlocks from: Own Any Car in the Series
Maximum Required PR: 78.0

There are 51 events - 48 Trophy + 3 TT – with each car having a specific TT and 2-event showcase.  Any single car suitably upgraded can reach at least 75%, but only the Audi will be able to be upgraded enough to open the last 2 cup races (PR 76.2/78.0) to complete the series.

Progress Rewards split:
25% - 9GC and R$9,000      [PR 59.1 using Ferrari, PR 61.9 otherwise]
50% - 14GC and R$14,000   [PR 64.0 using Ferrari or Chevrolet, PR 67.3 for Audi]
75% - 20GC and R$20,000   [PR 69.7]
100% - 31GC and R$31,000  

Audi upgrade costs will be:

(Thanks as usual to Paulo)