85.6 mpg
You can get an mpg calculator for your car at the local custom car shops. They will install it for you if you buy it from them. They make them very fast for any car.
Vw
Pris
Currently, the 2010 Toyota Prius - 50 city / 49 hwy mpg
The domestic automobile gets the best MPG is the Chevy Volt by far. This vehicle is primarily an electric car and is said to get in excess of 100 mpg.
The series that has the best mpg is the Volkswagen Passat TDI at 42.9 miles per gallon. The second closest best car for miles per gallon is the Mazda 3i Grand Touring at 42.5 mpg.
the best ive ever found and had was my dubed out 1986 toyota corolla 5spd it got 56 mpg high way and 52 city
There are many efficient cars out on the market today. The best MPG car you can buy at the moment is the 2012 Smart For two Coupe at $347/MPG. Coming in next is the 2012 Nissan Versa Manual at $366/MPG.
There are many great luxury cars to choose from. One great car to consider is the Lexus HS Hybrid which costs around $40,000 and MPG rating of 35.
Usually highway driving is where a car gets the most mpg.
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.