p151
Shake the Tail: When you are the one being followed in a car-chase, you have a real talent for sudden turns and daring maneuvers to shake off your pursuers. Gain a +2 to Driving in such a case.
Is the +2 bonus to driving added for every roll or just tacked on at the end total?
For example, my say the person with the stunt is in a Cat and Mouse car chase and has Great Driving
He rolls 0, 5, and 7 for a total of 12. Would I add the +2 to each roll and get 2, 7, and 9 for a total of 18
OR would I only add the +2 once for a total of 14?