I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets.... * N, _( B7 Q, n; Q. O: b: _; ]/ t+ x9 j; E/ ?3 G1 n
For me, I think car-pool is just to share part of gas "cost" and have some fun on road..... # {6 U! @$ d, E6 ?/ b5 X4 f* M/ J & K7 x' X' m8 b) u( y; UI usally charge passager 30 bucks for a trip.