GTR's can be set to very realistic, it's still very fun. The next Race drive promises to be a lot more real than the last, the way I see it, it just promotes safer racing, ofcourse, the AI would have to be sorted, it could be very frustrating to have damage if your doing fine but the AI cars keep smacking into you, so for me it's sort the AI, then include damage ect. As for longer races, the inclusion of damage would surely increase the specialness of the race, you'd spend a lot more time thinking of stratergies on the fly. Remember a race car can take bumps and knocks and carry on occasionally needing bodywork taping down, you have to really smack something to make the car a dnf, broken suspension, brake failures, damaged transmission ect can all be fixed in the pit's, as long as it's not half arsed it'd be great, but then I love as realistic an experience as possible not everyone does, some people only like to think they do but then complian when they play a proper racing sim cos they can't do it.