Negative:
Lead foot (chance to accelerate similar to chance of going full auto with trigger happy)
Speed demon (morale penalty for slow driving/ ignorant of speed in mph) cause crashing is Fun.
Pedestrian (cannot drive above 10 mph)
Farsighted (cannot read or operate computer without glasses)
Clumsy (opposite of parkour, takes longer to traverse difficult terrain)
Random (for many points, allow the game to randomly select a negative trait.)
Positive
Reflexes (+x movement points if damaged last turn)
Mad max (+ x movement points if in car)
Hidden strength (when health is low, strength goes up)
Random (get a random positive trait for the low low price of one point.)
Change:
Npc related perks (npcs only work somewhat)
Android (too much random. Characters start out superpowerful. This is a tough problem. Maybe split android into several different perks for more specific choices.