As expected, in September, the administration of U.S. President Barack Obama will present the bill, according to which, by 2025 the average for each car brand, the level of fuel consumption should be reduced to 4.2 liters per 100 km On the first look initiative deserves all respect. Because with the reduction of "appetite" of cars will be reduced and emissions of harmful substances into the atmosphere what so keen on the modern advocates of ecological ideals. Another thing is that in the Obama administration, it seems, and have no idea how much it will cost similar savings. According to the findings of the Center for automotive research in Ann arbor (Michigan), reduction of fuel consumption is 4.2 l per 100 km on average across the individual models of the brand will increase the cost of each new car for $6714! This amount is the sum of many factors. First, to achieve your goals, should significantly increase sales of electric vehicles and hybrids, which are traditionally more expensive than conventional cars. In addition, the car companies will have to invest additional funds into the design of new models. To be economical, the car of tomorrow need to lose weight, but it costs extra strong and lightweight steel. Add to this the cost of tires with low rolling resistance tires and new more efficient lubricants. Don't forget about the increased budgets to improve aerodynamics and so on and so forth. In the end though, the financial burden of all of these improvements would be borne by potential buyers.