Better late than never I suppose!
Rewards: 51 Gold, R$51,000
Location: SEASON 2
Unlocks from: Owning the BMW M3 GTR Street
Maximum Required PR: 62.5
There are 51 events - 48 Trophy + 3 TT - with each car having a specific TT and 2-event Showcase. Even fully upgraded the M3 Coupé can’t reach 75% on its own...suitably upgraded the others can, but only the M3 GTR Street can be upgraded enough to open up the last 3 cup races (PR 53.6/58.6/62.5)
Progress Rewards split:
25% - 6GC and R$6,000 [PR 24.0 using M3 Coupé, otherwise PR 26.2]
50% - 10GC and R$10,000 [PR 27.7 using M3 Coupé or M4, PR 37.2 using M3 GTR Street]
75% - 14GC and R$14,000 [PR 43.5]
100% - 21GC and R$21,000
Upgrade costs for the M3 GTR Street are:
(courtesy of Paulo over on FB)