P CARS isn't going to be a dream game for me. For others, it depends.
Some people only seem to care about engine sounds. Or damage. Or racing rules.
I want a wide variety of cars to experience, and modify, and race. P CARS is going to have about as many cars as GT3 did, which was pretty skimpy compared to the rest of the series. Supposedly you can modify the street cars and apply liveries to them, but it's evidently still a long way from release. And that car list is still pretty small.
So the only games that really ping on my racing radar are Forza and Gran Turismo. And the latest Forza doesn't seem to have many more cars than P CARS does, so even it is falling short.
Oh well, long live the king.