For some reason the game sort of kicked me out at the last cup before the final race. So I did that last race separately at the end. Since there were no obstacles/other cars in that race I added a extra minute to the time to make up for it. The original time is 43:08.800 and I calculated that from adding all the in-game race times together.

Mod Note: I really want to find out what causes a lack of obstacles. If I do find a way then I'll come back and remove the extra minute. Cheers!