Have you tried RaceRoom? It’s got great graphics, and tons of classes and tracks including Nordeschlieffe and Bathurst. It’s on Steam.
Yeah, I was in on the beta (one track, one car), but I was using a 2006 XP PC (still use it!). I debated whether to get a new gaming rig, or a whole new gig rig (guitar, amp, pedals, etc.). I went with the guitar. I'm getting old and too slow these days, LOL!
Would like to see the DTM's. R07 had a free DL of them and they were a blast to run.