Load times are faster, thank god! I do find that waiting till the background changes to a moving scene after the first still pic at tracks, it will launch quicker. If you launch the race while the still pic is up, it seems to stick.
I can agree with most of mr pops post, except the carts. Can't stand the twitchy things. I come out of a turn, go to lay the power down and the damn thing spins sideways. The tiny courses require tons of coasting and very little throttle. I find if you don't jump as much of the AI as soon as you can they just bury you as the lead cars leave you in the dust. And god forbid one taps you, off you go. On the fast tracks an off will mire you back so far you'll be lucky to get back to 6th by the end. I do have to tweak the gearing, trying for top end leaves the car too sluggish on acceleration. shortening the gearing would fix that, but will the car run out of umph on the fast parts?
Another thing that bothered me were the S class races. Because there are no true enduros, they tried to mix elements of that with this last group of races. The time change went overboard, it got too dark, too fast. If I didn't use the driving line on Nurburgring I wouldn't have been able to stay on the road at all. And the tire wear and gas consumption was way to quick too. The Lemans race I couldn't make 3 laps, I'd run out of gas at 2 3/4's and coast to the pits while falling way behind. Changing tires, the next sets wouldn't even hold up for 2 laps unless you used racing hard. Which is counter to the track being over 60% wet. You'd want to at least use intermediate, but they were garbage before finishing the second lap and then the car couldn't even go in a straight line. So you're forced to use hards and baby the car in slippery areas.