Cool things I like after 12 hours playing.
The superkart, the exhaust exit is on the rear left so once racing around the rear left tyre is always hotter than that rest because of it, cool touch.
Proper FWD! The Clio handles how a Clio cup should, the replays look insanely like watching the real thing on TV. No understeer for the sale of understeer, just proper hot hatch racing feel.
I echo the post a few above, the Monza Pagani club invitational is absolutely sensational. The feel, the sound, everything.
Stones and rubber. Noticed this racing the Clios on Snetterton. Car in front ran over some stones or bits of rubber and a bit flicked up and bounced off my cars bonnet /windshield. Made an audible thwack as well.
Despite a lack of narrative, it still pulls me in every race, there's always someone in every championship who you seem to get caught up with on track, makes each series feel very personable. Even if it didn't mean to.
But my favorite thing, is progression doesn't have to mean going faster. The slower cars are just as fun as the faster cars, so there's no shame in driving them. It's very hard to get bored with anything.