The AI in Project CARS is often more of a challenge than what I encountered when I used to play GT6 online, and considering you said you haven't even touched the career, you have already formed quite the opinion on it haven't you?
I bought the game to experience the simulation. The realism of the physics, and part of the simulation is the simulation of a motorsport career. The way they've done it is quite good. If I wanted to play 12 year olds who play bumper cars into turn one, I'd play online. And as I said, I don't have the spare time to commit to a schedule of online racing series' with half decent drivers. I've gotten more satisfaction out of the couple of weeks I've played this game an hour or two at a time, than the whole time I spent playing GT6 online.
It's not you disagreeing with me that I found rude, it's how you presume to know what I, or everyone else for that matter, wants out of a racing game, and then go on to say if we don't like how you would prefer the game to be, maybe we shouldn't play it.
Also if you think cars are boring to race, you either haven't raced the right cars, haven't actually raced against anyone, or you're just making stuff up. Either way it doesn't bother me. From your lack of ability to comprehend a view other than your own, I would've guessed you're about 13 years old.