It is a guide for those who have yet to consider purchasing a new car and are asking the question how he or she can reduce carbon emissions, from more frequent maintenance to keeping tires properly inflated, to reducing the unneeded weight that goes along with you on rides, to removing roof racks or flags of your favourite hockey, baseball, basketball or football team that increase drag, and to better driving habits. You can also check out which new cars are more eco-friendly, as well as cars that are not.