I've played the hell out of it for the past 3 days. Great stuff, though it still needs some stability updates. I think 4WD is the way to go this time around. Most of the fun is offroad. Quite a rush hopping around hillsides and knocking down entire banana plantations sideways. My favorite car so far is this Audi Quattro rally car I lucked into with a level-up spin. Everything looks amazing, and finally night-time visibility is good--pretty, even. When it all behaves itself, it's perfectly fluid too. No issues at all with car-engine sounds this time either. If you read my most bitter complaints about the 2nd game, you'll know what I'm talking about.
There are some unfortunate irritants, ANNA in particular. There seems to be no way to disable her or her concentration-killing interruptions. In the last game, "she" was tied to Kinect, so disabling that disabled "her". No such luck this time. Also, I thought it was cool that you get to select which radio stations you want, but that was an illusion. Eventually, they're all thrust upon you, including that Groove app which I'll never pay for. I despise rap, and I really tried bypassing that hip-hop station. Cannot be done.
Xessive, I've been seeing a lot of your alter ego. I still don't really know how that tech works. My guess is that your driving is captured somehow, then scaled to whatever vehicle and class it's used on later? There has to be more to it than that. It seems like magic to me right now. I guess W7RE only played the demo. His drivatar is still at Lv 1. I still hired it into my lineup, though the game keeps throwing much-more experienced ones at me (which I've been ignoring).
Anyway, I'm hooked. These guys did a superlative job. Fix those crashes, and the hiccups I assume are due to imperfect online communications (because they come in a bunch of frequent occurrences, and later disappear entirely) and we're golden.
Edit: I was right about the hiccups. Started getting some today, went offline, and they disappeared completely. A patch came down when I tried to go online again later--a bit over 1 GB on size. It seems to have fixed the crashing. (I got one crash every day, 4 total, with 3 related to doing things in the garage.) I played a marathon session after that, with no ills at all. No proof yet, but it feels right. Smooth performance for all those hours too. Only a couple of momentary hesitations in free roam while online this time.