I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets.... " P3 W% u9 L7 ?/ R1 q6 L5 u4 T" b3 t5 K* g3 C! U
For me, I think car-pool is just to share part of gas "cost" and have some fun on road..... 9 ]% C" Z6 c0 N! j6 G/ X/ {0 F 7 }9 r- T U8 {, X" i* Y; `6 wI usally charge passager 30 bucks for a trip.