Seems that there's still network issues with this this morning as well
I'm guessing all the chumps, like me, bought it in the PS store sale for £25 in the last 24 hours and that has bought down the servers. Tried playing the offline mode yesterday and it was rubbish. Nothing saves and pressing OK to network errors about 4 times per event. I really hope it gets better when the online component is working.
On the plus side, the menus seems much faster than the last GT game I played, but man, the load times....
Edit: Reloaded the game this morning, and not happy! It doesn't even save audio settings or offline races that I did yesterday, or anything. It is literally like reinstalling it from scratch. I don't own that many PS4 games, but none of them have a save feature this rubbish! Absolutely useless, until the servers come back online.
rp2000