Just FYI, for any other FB folk with the "no avatars" issue, I tweeted RR3 about it:

Hugh Messenger ‏@cheesegrits
@realracing still no avatars for FB friends ... :(

Real Racing ‏@realracing
@cheesegrits This will be resolved next update!

Hugh Messenger ‏@cheesegrits
@realracing awesome, thanks. All we need to fix now is that weird bug where new cars cost 900 GC or more. ;)

Didn't get a response about that other "bug", but at least it looks like we'll get our avatars back soon(ish).

Hugh M