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Oxygen benefits from favorable weather conditions (south wind - 10 miles per hour) to improve his time (42’), he arrives at the same time as CO2 which is very nervous because of the hectic driving conditions.
At mid-morning break, CO2 et Oxygen are discussing what's the cost of their journey, CO2 quickly estimate its daily round-trip drive to 10 Euros (for Gas & Toll) plus 5 Euros (depreciation + insurance + maintenance ), Oxygen is charging the battery of his motorized bicycle once per day (i.e 3 hours at 10 cts/Kwh) which ends in 0,30 Euros plus 1 euro for depreciation and 0,8 euro for maintenance (hey, he need one more desert for lunch for all the calories lost pedaling ;-)
CO2 : 2 points, Oxygen : 1 point
