The fun equation is relative. Some people find escapism racing fun (arcade/extreme NFS style). Some find a touch of reality, but still easy to pick up fun (Codemasters GRID style). Some find the challenge of mastering physics as close to real life as possible fun (hardcore sim style). For me it's not a question of picking. I find driving in real life the most fun and no game will ever compare to that. So for me the closer the game is to emulating the feeling of driving in real life, that's the most fun Though of course I can still enjoy the odd arcade racers from time to time. I also agree that simulation =/= difficult. At least up to a point. Driving at low speeds is easy, as you know almost everyone can get a license IRL. Driving at moderately high speeds is also easy. Just be smooth, use the racing line, don't do any sudden weight transfers. Any average Joe if they practice hard enough will be able to get within a few seconds of top drivers' times. But to be the best and actually win races in international competitions, the difficulty ramps up exponentially. That last 10%, feeling the on the edge of control, that's the difficult part of racing. Last generation sims have a tendency to be harder than real life. Partly because their physics system is simplified, and partly because FFB wasn't so good back then. Sims this generation are easier to drive when you're cruising, but when you're pushing it's still difficult to beat the top guys. PCARS and AC are really close, but PCARS is just a tad more forgiving to me. GT6 is a weird one, because the physics are easier, but FFB is also worse so it's more difficult to "place" the car on the limit. Hopefully GTS will improve things so it's at least closer to PCARS/AC.