PC3 was great for what it was, they just made wrong decision with naming convention. If it was named differently it would do just fine. PC version was great, console version had stutter in some scenarios that was never fixed, it even sutters on Series X so no brute forcing.
For me - game was like Driveclub with better physics, it worked great with gamepad.
Project Cars 2 was awesome, although flawed, PC1 had some bigger problems at launch.
IMO shame, but franchise was handled wrong with 3rd instalment so no surprise there.
Ian Bell and some people from SMS are working on GTR successor, so you can think of that like Project Cars 4.