There are no 8hour, 24hour etc endurance races - I think 20mins is about the longest? There are a few missions and coffee break and single class races Not sure of the comparison in career mode though - there's 6 stages with more and more races in each stage as you progress - not sure how the numbers compare with GT5 though. I think I'll be able to complete the career a bit quicker, but it's more to the length of the races and lisence grind that was in 5 than the number of races edit: plus - you get to drive on the moon