Loving the game so far, had some tremendous races.
A few things I've spotted so far.
On the loading screen for multiplayer races the car icon on the right is the car from the previous race, so my first race shows nothing then on subsequent races it's the car from my last session.
A few times I've started on the grid inside another car, this appears to be because I'm out in the wrong slot, I noticed I qualified 11th but then was in P10 on the race grid. Fortunately there was no collisions as I drove off in that case, but other times it has been a bit messy. I suspect it's caused by people joining and leaving between qualifying and the race, but I haven't completely worked it out yet.