I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets.... . G; H( i& j2 d+ l1 C1 B" v! A9 o) H! H2 K9 L ~( u1 a5 x
For me, I think car-pool is just to share part of gas "cost" and have some fun on road..... - m0 F' t1 ^/ N* z1 l! s$ t8 H4 B% J' _
I usally charge passager 30 bucks for a trip.