I bought the Ultimate Edition (PS4) last week and am addicted. I've only just scratched the surface, as I am only driving cars with H-pattern shifters and getting my muscle memory for heel/toeing and using no driving aids at all. There is nothing like driving a Ferrari 330 P4 at Spa and running through the gears and hearing the sounds of blipping the throttle into turns and accelerating out of them. It's just so visceral, and all the cars feel completely different from one-another. I had been playing GTS, and I honestly rarely ever drive just to drive. In that game I'm just trying to improve my time so I can get a trophy, points, qualifying position or whatever. I don't drive just for the thrill of driving in GTS. The cars all feel so similar and not very distinct from each other. I like GTS, but it's just not the same experience. GTS is a much better game overall, but AC is far better for just pure driving. I can't believe I waited so long to buy it. If anyone is on the fence, just buy it for the driving pleasure. The cars all feel so alive and it's a thrill to learn each one.