Working reverse lights.
3D spectators.
Tyre and skid marks.
Livery Editor.
NFS and Burnout Mode.
Cop Chase Mode.
Working indicators/turn signals.
Ability to vacuum the interior of your cars at the Car Wash.
Fully customizable grid girls.
Donks.
Although some make fun of the livery editor, it will add another dimension of time consuming, boredom killing fun.....although i now assume it won't make it in GT5.
1. Beer
2. Hookers
3. Rave parties
Either these three or tactical nukes to take out the punters.
In order of importance:
1. Save option during pitstops in long races and enduro's
Race Event Creater : To make race events for arcade / online and possibly
even intergrate with simulation mode. By this I mean you set the restrictions for the race from over a dozen settings. Can pick the A.I. and even choose and tune the A.I. cars. Can use this program to create weekly or monthly events or variuos race tournaments. For online you could choose a preset number of cars and first come first pick etc. or several options in this regards.
Set the prices / rewards and entry fees etc.