I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets.... 8 H6 B# b! v' s2 n& v( ?8 S t$ w/ f e2 j2 I: r8 Q+ @) n
For me, I think car-pool is just to share part of gas "cost" and have some fun on road..... 6 B6 H$ @& b8 J$ ?! K8 c. G! V ? # x g2 S9 \3 `+ [* PI usally charge passager 30 bucks for a trip.