Here the usual extra info on this series for the Type-R Honda's Civic and Integra...
Owing to technical difficulties* and having fully upgraded both cars the details are as close as I can make them!

There are 54 events (52 Trophy + 2 TT) with each car having a specific two-event showcase + TT.   The rewards 25-50-75-100% are split 7-11-15-23GC, and only the Integra can be upgraded enough for the final races.

Either car with just its LTS-winning PR can get some way past 75%, so for example with just the Civic...

...and then with both:

For the final cup races the Integra needs to be upgraded to apparently any one of three configurations - 5343334, 5333344, or 5343343, the first an extra 60GC and either of the others an extra 58GC.

* for an indication of 'technical difficulties' check out team [F8M] in-game!

Paul B...Lenovo Tab E10, Android 8.1
Nominal Team Captain [F8MR] Firemint Rac8rs

R.I.P. Pauly M. and F8M and Tab4 :-(