Hello (here's hoping a CM staff will read this), Roughly how many hours will the single-player campaign take? By which I mean, to 100% it and obtain all cars etc. I ask because I bought Grid 2 after reading the reviews, but finished it in a couple of days and traded it back in for something else, I like my racing games to have a bit of meat on them. I play the F1 campaigns, for example, on the longest career length.