When I first seen the car I thought of Hurley because he was working on the car with his dad. I was thinking the scene was from before he went to the "island" and that the car he hit was the one that the woman Jack had done surgery on and then married. But then when they pulled him from the car and he was saying he was one of the Oceanic Six so therefore I realize it was after the island.
I'm sure there's a lot that hasn't been notcied about the car chase having any relation to others that were on the island other than seeing Jack looking at the tv screen. I'm going to rewatch the whole episode this weekend and see if I can't spot anything during the chase. As well as through out the episode, so peace out my friends.

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Standing in the ocean with the sun burning low in the west
Like a fire in the cavernous darkness at the heart of the beast
With my beliefs and possessions, stopped at the frontier in my chest
At the edge of my country, my back to the sea, looking east