I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets....! I A! K! i" ~1 [, F3 z1 f1 r
2 J* m5 E9 J/ n; GFor me, I think car-pool is just to share part of gas "cost" and have some fun on road.....* _* L5 O8 R! _) C+ t
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I usally charge passager 30 bucks for a trip.