The usual extra info on this series for the extortionate Porsche 919 Hybrid Evo...

There are just 38 events (35 Trophy + 3 TT) and the rewards 25-50-75-100% are split 9-15-20-31GC.   The LTS-winning PR126.7 gets you all except two events (cup races) ...

For the dubious pleasure of completing those and earning the final 31GC reward you'll have to pay an extra upgrade cost of 715GC.  Expletives Deleted