I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets.... 1 c9 X$ U- C3 H6 q. n3 O0 a ( P' |) ?3 F6 m! G3 L$ nFor me, I think car-pool is just to share part of gas "cost" and have some fun on road..... 5 J2 ^4 b1 A2 S9 U2 h3 D' y" x - R4 @: g ^# P0 Y& I" C: u6 CI usally charge passager 30 bucks for a trip.