Any issues with playing the game before it completely installs? I’d rather wait if some odd things like not getting reward cars are going to happen.
that is one thing i would never do just to be safe…
Wait you can play it while it downloads? Been waiting 4.5 hours so far…
Over the years of being able to play a game before it finishes installing, I have learned that you simply should not.
The first reason is because it takes LONGER to install, because most hard drives cannot read and write at the exact same time, which means if the game is reading from the hard drive, it cannot write.
Secondly, This is an online game, which means that you are likely going to have a large chunk of your bandwidth dedicated to playing the game, that your console is going to prioritize. If you are getting download data, and your game freezes because it has a bug, you will likely mess up your download file, just slightly enough, to make certain features not work.
If your internet is fast, just let the whole thing download and install.
If your internet is slow, assume that you are not going to be able to play this game for a few days. Don’t try to play it while it is downloading. Go outside, go ride your bike, go to the movies, do ANYTHING that does not use your internet.
The only thing you are going to have access to, without it being fully installed, is likely the first race anyway… in which case, you are wasting your time anyway. Chances are you cannot even access the Settings menu to disable the assists, and you will be stuck on INFANT DIFFICULTY.
The progress bar has a “Ready to Start” marker on a lot of games. At least for the digital version, it’s around the 25GB mark.
But yeah, suppose I’ll wait another day. It’s taken me about 4 days to get to 80%. 
yeah dude, know you want to play the game, but i would wait. i don’t play any game while a game is installing. i always want to eliminate all possibilities of install fragmentation.