Something does not come out of nothing and there is usually a price to pay. Toyota has learned from a recent study that their hybrids, especially the ground breaking (but downright dowdy) Toyota Prius aren't as eco-friendly to manufacture compared to other vehicles. Normal cars somehow make less pollution during the manufacturing process.

This comparison is in terms of emissions of nonmethane hydrocarbons and particulates, which is emitted during the process of manufacturing the electric motor, inverters and the nickel metal hydride batteries. In other words, in order to manufacture the Prius, Toyota needs to expand or use more energy to produce that extra electric motor and all of its ancillaries whereas a normal single engined fossil fueled car does not need the extra manufacturing processes.

Toyota had found out during these life cycle emissions assessments that when compared to cars in the same class, the Prius emitted more bad stuff during manufacturing but fared better over its lifetime in use. The Prius is better than the average same sized car in terms of CO2, nitrogen oxide and sulfur oxide over its lifetime. I suppose this meant that Toyota had began its study on the Prius ever since it first started manufacturing it in 1997. A good 13 or so years of information and covers the average 10 year lifespan of any vehicle.

Toyota has stated that it will use the findings to ensure that all of its hybrids, which would include the newly launches Lexus hybrid hot hatch, the CT200h F Sport (photo below)