Trying to make the most fuel-efficient vehicle is a challenge. Right now with the prices of gas, it is a good time to try and introduce a new product. Hybrid vehicles, which use an electric motor that is powered by batteries, are merging with diesel. These two complement each other in giving a car with power and acceleration. The diesel engine gives the "torque" necessary for pulling a heavy load, and hybrid motors draw electricity from the batteries providing sudden acceleration.
Diesel engines could be improved by up to 10 miles per gallon. Nothing has been set in stone for producing hybrid-diesel vehicles. School buses and large utility vehicles will be first to test out the hybrid-diesel technology.
Money is always an issue. By buying a hybrid-diesel vehicle one may save hundreds of dollars on gas. But, will these cars be cheaper? No. These hybrid-diesel cars will cost a couple thousand more than a regular diesel or gasoline engine car. Metropolitan areas can benefit because the air will be of better quality. Are people willing to spend thousands more on a car in order to help clean the air? Will these cars just be out on the market with few buyers? Are these cars a step towards a new car of the future?