I gassed up my Mazda3 this week at 1.43 a liter and it cost me $64.00 CDN! That was my costliest fuel stop ever and this was for regular gas! According to fueleconomy.gov, my car gets 22/29 city/hwy mpg which aint that great as my bigger and heavier Volvo 850 got 20/29 city/hwy mpg when new! Due to its age, the 850 probably gets a lot less mpg than the epa figures, but I dont drive it enough to be able to track it's fuel economy. fueleconomy.gov also has a list of the most and least fuel efficient cars. In the wagon category, the most efficient are Honda Fit 28/34 city/hwy (thats not a wagon!) Volkswagen Passat Wagon 21/29 city/hwy Least efficient Audi S4 Avant, 8 cyl, 4.2 L, Man(6) 13/20 city/hwy Mercedes-Benz E63 AMG, 8 cyl, 6.2 L, Auto(S7) 12/18 city/hwy The most fuel efficient car on the list is the Toyota Prius hybrid, it gets 48/45 mpg. Maybe I should have got that instead of my Mazda 3?