A bicycle!
A very small vehicle with a small engine is most likely to use less fuel.
The most fuel efficient vehicle on the road as of the present is the Toyota Prius. National statistics state that consumers are extremely happy with this vehicle.
The Ford Escape Hybrid is the most fuel efficient SUV,.It gets 34 highway and 31 city with seating for five. The Mercury Mariner vehicle is mechanically the same vehicle and gets the same fuel economy.
hybrid
The most fuel efficient cars can be compared using the motoring magazines but for comparisons tailored to specific vehicle usage, you cannot beat the comparison websites.
The Chevy Volt looks to have the most fuel efficient MPG for the most car. In order to get the most out of your purchase the vehicle still needs to be large enough to fit things in but still have the fuel efficiency desired by consumers.
bicycle hey just kidding... sorry but i guess hybrid cars
After doing some research on generator fuel. It seems generators which accept diesel tend to be pricier however they are most efficient and conservative than the other generators on the market. However gasoline also has its advantages as may not be as efficient as diesel but you can use excess amounts to fuel your vehicle. But the same can be said for diesel if you vehicle accepts it.
According to TV ads, it is the Chevrolet Orlando as of February 2012.
On the most fuel efficient vehicles list in the past 25 years the Chevy Sprint is listed as thirth most efficient vehicle in the past 25 years. Great work for Chevy.
Many SUV's are not fuel efficient.
Fuel use is an ongoing expense and should be considered when purchasing or leasing a vehicle. The Fuel Consumption Guide, published annually by Natural Resources Canada, provides model-specific estimated fuel consumption information on new light-duty vehicles sold in Canada each model year. The information can be used to compare the fuel consumption of different models and help you to select the most fuel-efficient vehicle that meets your everyday needs. Choosing the most fuel-efficient and appropriate size of vehicle, driving in a fuel-efficient manner, using your vehicle only when needed and following the manufacturer's operation and maintenance recommendations for your vehicle can save you fuel and money, and reduce your greenhouse gas emissions.