It's odd Marc, because I hated the Dirt demo. I don't know why I bought the game, I think it was just because there was a lack of other stuff on the PS3 at the time :lol:
Not seen much of the F1 game, but I find F1 tedious so it doesn't hold any interest. I had a girlfriend worked on the last Micropose F1 game. She had to go to the various teams to record the engine noises - not a bad job at all!
You're right, they are good.
Have you ever tried Live for Speed on the PC? The F1 style cars on that are superb, such a brilliant game if you're a real petrol head. Beware though, it's seriously demanding with the way the physics model works. Not the kind of game you can just sit down and start to play. Also, decent force feedback wheel is almost a necessity...