I have been at work since 6am this morning, saw the topic and been salivating waiting to get home and watch this on my screen that I use for gaming. WOW, it is impressive. Looks so damn smooth. IQ definitely looks improved, but still some aliasing on fences and such, but such a big jump from Forza 5.
It was worth the wait...now Helio's, give us the same thing. 3 laps on Rio, 1st lap 1st person, 2nd lap 3rd person, final lap cockpit. Include pre-race footage and post race footage.
Lastly, I really hope they have another time of day setting for the Rio Track. Having that at sunset or sunrise would be great to see and add variety.