I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets.... % W4 P. v) E8 ?5 v9 N: M b8 P4 D+ d+ n! q7 v5 M+ Y8 \
For me, I think car-pool is just to share part of gas "cost" and have some fun on road.....4 a9 [. Z% r Y( ?) W/ w
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I usally charge passager 30 bucks for a trip.