CNW Marketing Research Inc. spent two years collecting data on the energy necessary to plan, build, sell, drive and dispose of a vehicle from initial concept to scrappage. This includes such minutia as plant to dealer fuel costs, employee driving distances, electricity usage per pound of material used in each vehicle and literally hundreds of other variables.

To put the data into understandable terms for consumers, it was translated into a "dollars per lifetime mile" figure. That is, the Energy Cost per mile driven.

The most Energy Expensive vehicle sold in the U.S. in calendar year 2005: Maybach at $11.58 per mile. The least expensive: Scion xB at $0.48 cents.

While neither of those figures is surprising, it is interesting that driving a hybrid vehicle costs more in terms of overall energy consumed than comparable non-hybrid vehicles.