60%? The one criticism 2 got here and there is that other event types take too much career time away from pure rallying. I don't know about that. Everything is so well implemented, and the variety keeps things from getting dull over time. I'm not a big fan of stadium events, but once I'm in one, I lose myself in the moment just the same.
While Forza 4 is more serious in terms of car setups and sim handling, the AI racers are shit. They follow their splines as if you didn't exist. Here, the AI is constantly aware of you, and even talks to you based on what you're doing. Watching replays, it is clear they always do their best to avoid plowing into you, while trying to gain the upper hand. The different difficulties make them more or less able to hold turns at speed, it seems. There are at least 5 of those, so you can dial in the challenge you want. Replays show how much they can stick with you, and take advantage of your mistakes. They are not just following a canned line and making a beeline for it when they get pushed off of it. They seem to be actually performing somehow. The physics are phenomenal. I can't overstate how good the action feels. They may be more forgiving than a pure sim's, but flying too fast into a corner or over a bump will be costly just the same.
My biggest gripe is that I can't save replays. Some of them are epic. There's also the rare hiccup, where the action freezes for a second. Streaming bug or deficiency, I imagine. By rare I mean perhaps once every other multi-hour play session--very rare, but still quite disconcerting when it happens, and disappointing.
