This game is by far the best F1 game to date and I coud easily play it for hours.
My only minor grumble is that there are a few bugs in original and official patch doesn't clear them all.
I hope they do release grand prix 5 but alas this is looking more and more unlikely by the day so you'll have to satisfy yourself with this offering. That's not all bad as there's plenty here to be getting on with
Enjoy