Haven't played it yet, but from the looks of it Race C is genuinely fantastic, and exactly the type of racing that GT7 should have facilitated from the start.
It feels like every element of the intended GT7 experience - from custom liveries to tuned car builds to dynamic weather - has come together in Sport mode for the very first time, and it makes me so sad to think that it could all go back to the same old bog-standard Gr.3 or Gr.4 cars racing around the same tracks next week if the player metrics aren't enough.
Regardless, this is a very good sign. Now bring on the 90s DTM daily!!!