I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets.... , V2 u! X& w* s$ d. {3 v9 B0 k3 a# Y
For me, I think car-pool is just to share part of gas "cost" and have some fun on road.....% j: P U% f0 |+ g4 A, u, O" u
5 z5 L$ y) V6 ?I usally charge passager 30 bucks for a trip.