I have two controllers, so i have split screen going and player 2 is signed into as a guest and he should have access to player 1’s car list. All he has is access to the rentals which is dumb. Make is so guests have access to main accounts vehicles!!!
Please use the existing thread on this topic for discussion:
http://forums.forza.net/turn10_postst1464_Understanding-split-screen-limitations.aspx
Or add your request to the Forza 5 Features Wish List:
http://forums.forza.net/turn10_postst207_Forza-Motorsport-5-Game-Features-Wish-List.aspx