Its just alright. I like it but even though the graphics are an improvement over F3 I still find the lighting a little dark maybe its the blacks are too dark ?? .. also because it's a demo there is some texture pop in which annoys me.
They put some bloom effects in the snow mountains which took a while for me to get used too..
The speed of driving is fantastic especially when you drive "in car"view.
The car handling you will find you drift a lot more easier and the car can sway out of control if you lose concentration.
Wish they put a volume control for the sound... you may love it or hate it..
Currently just watching the replays and pretty impressed with the amount of background trees swaying. There are also 2D people mixed in with 3D persons.
EDIT:
I find the lighting better if your TV has a cinema/normal mode colours which has lower contrast. Currently was playing it in GAME mode which has high contrast.
and there is some real nice retro sounding music in the menu select screens..







