I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets..... q |- a$ G7 ~: I3 s
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For me, I think car-pool is just to share part of gas "cost" and have some fun on road..... 3 q8 c5 U& N5 v- b. C+ H8 k+ r* D/ x7 z! {% `- u. i/ R2 p( U
I usally charge passager 30 bucks for a trip.