Ok, so on my PS3, I have a profile and my brother has a profile. I was wondering if it's possible to load cars from my profile AND his profile when we want to play multiplayer against each other. Is it possible?
So should both of our favorite cars show up when we play 2 player even if the cars are in different profiles? Also, don't you have to transfer cars through the internet somehow?
Only the favorites of the account signed in will be there. As for Trxfering cars, all you do is select the car from your garage (cant send a car you are currently in) and on the left is an option for give car to a friend, there you would select which friend.
...Though it's worth pointing out that if you want both your brother and your cars on either account, you'll want to "dupe" them: backup your brothers save to a USB device, send whichever desired car to your account, then restore the backup save.
It's unfortunate that local multiplayer has become such an afterthought in this generation; GT1's Memory Card Battle was a lot of fun.