I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets....( B' B9 g% l" ~, q3 z( r
' w2 c" [( D4 |5 L% JFor me, I think car-pool is just to share part of gas "cost" and have some fun on road..... 5 _- e4 j8 e" e2 ?1 D7 E( k ! z# z+ A$ f; q# E$ k6 DI usally charge passager 30 bucks for a trip.