I don't know the exact "cost", which may be too complicated to calculate it, including car,maintenance,gas,insurrance, even tickets..../ {7 C% r/ o* H, @! `/ a# \
: S4 N* f- S9 e' K2 Z4 F/ GFor me, I think car-pool is just to share part of gas "cost" and have some fun on road...... w5 n1 T; a0 R8 u
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I usally charge passager 30 bucks for a trip.