Rewards: 52 Gold, R$52,000
Location: ELITE
Unlocks from: 18 Trophies in Lexus LFA Showcase Series
Maximum Required PR: 63.9
There are 45 events - 42 Trophy + 3 TT - with each car having a specific 2-event Showcase plus TT, and only the Acura can be upgraded enough to open the last two cup races.
Gold progress rewards:
25% - 6GC
50% - 10GC [solo a bought Acura would need PR48.7, the other two a little less*]
75% - 14GC [I think it came around PR58, out of reach for a solo Chevrolet]
100% - 22GC
* since they will have extra progress from their dedicated events
Obviously the Acura isn't available yet, but a fully upgraded Ford Shelby at PR58.9 can do all that a just-won PR60.1 Acura can, namely past 75% just on its own: