Usually online sites that sale new or used cars have the gas mileage included in the car facts. Find an online dealership that sales a different variety of cars and then you can compare mileage collectively. Also places like enterprise and hertz have gas mileage on all of there cars as well.
The most effective tool for gas mileage comparisons is at gasmycar dot com. That site has the best tool for doing this type of research and information desired.
You can check out any car buying site for comparisons of fuel consumption. The Kelly Blue Book website and Edmunds.com are two of the more popular sites for comparing the specs of cars, including gas mileage, cost and more.
The site http://www.autobytel.com/top-10-cars/best-gas-mileage-cars/luxury-sport-utility-vehicles/ will tell you the top 10. The best SUV is the Lincoln MKX.
You can find more information at fueleconomy.gov. This site lists the cars with the best and the worst gas milage. The cars with the best gas milage are the SmartCar, Minicooper, Ford Fiesta and Toyota Yaris.
www.cars.com is a good place to find new and used vechicles. Another good site is, www.kellybluebook.com. Kellybluebook gives you the best price the cars can sell at and best prices to buy at, including what mileage is on the car!
There are a number of sites that offer listings for the best rated juicers as well as sites for reviews. One site that has been found that offers comparisons is the site "Raw Food Life".
Price comparison websites for cars are fairly common. Depending upon your country will dictate which you use, as used prices for cars can vary a great deal from one country to another. In Australia, the site Red Book gives a good guide as to how much a vehicle is worth given it's age and mileage.
There are a variety of sites that will allow one to make comparisons between two different cars. One site that offers this option is the "cars" website. The Edmonds site also offers the service to compare different vehicles. If one is looking to compare fuel consumption, this can be done on the "fuel economy" website.
Yes, they actually have a government approved website where you can compare and contrast mileages. Auto dealers also sometimes offer fuel mileage comparisons online or in person visits to their dealerships.
Check this site, http://www.nadaguides.com/Classic-Cars
The best site for a gas mileage calculator is at gascar dot com. That site has a good tool to see what you are actually getting out of the car and which is best and worse.
A great site to see lists of most and least fuel efficient cars is fueleconomy.gov. Here you can compare and contrast the MPG between different vehicles as well as see which car is rated the best for MPG.