My copy finally turned up this afternoon.
I like:
The handling. Body movement is good, grip levels seem reasonable.
The course maker.
The kart.
The smoke/skidmarks.
I dislike:
The flickery shadows on the car.
The flickery and jaggedy shadows cast by the car.
The jaggedy outline of the car if there is smoke/spray/dust behind.
The gale-force rain spray at Monza, despite an absence of tree movement, or even sideways rain (clearly just a way to stop it lingering and making the jaggedy outline of cars look bad).
The absence of Seattle.
The absence of any sign of headlights in the interior mirror on a night track.