I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets....$ v. z" Q1 f0 w! K5 B' d! D+ w; e
# \. w5 v( x+ D5 x6 F+ e% ]: TFor me, I think car-pool is just to share part of gas "cost" and have some fun on road..... 3 ^9 z0 ?, _# K/ }- O 1 g$ J+ x; p) j$ [) _4 a5 V3 kI usally charge passager 30 bucks for a trip.