Each character is rated in a series of skill categories: Stamina, Shooting, Strength, Stealth, Flying, Driving, Mechanic, Lung Capacity.
Each character has a 'Special': Franklin is an adrenalin junkie and can slow down time while driving; Trevor has a frenzy mode, where he's does double damage, takes half damage, and has a unique melee attack; Michael has his own version of bullet time
Specials are governed by a meter, it drains after use and recharges slowly
Other skill categories are shared and can be improved by completing missions, side missions, activities and more
Trevor will always be the best pilot, Franklin will always be the best driver but each can improve their proficiency a little
One of the skill categories is stealth, suggesting players will be able to take different approaches to missions