In the beginning I didn't want to add the classic 'skill selection' menu because it just screams 'cbcnr copy'. I was thinking of a more dynamic and interactive approach: skill proficiency.
As you do a task more and more, you get better at it. For example the more cars you steal and hotwire, the faster you'll be able to steal/hotwire them, kill the alarm, less chance of failing hotwire etc.
Skill ideas
Carjacker - The more vehicles you steal and hotwire, the faster and more successful you are at it.
Pickpocket - The more players you rob cash from, the more successful you will be, the more cash you can take and possibly even do it undetected.
Evasion - The more wanted stars you evade, the better you get at evading (evade quicker and when closer to cops).
Rape is not a feature and probably won't be.
If anyone has any other ideas for these apart from a 'Carjacker skill' let me know.