We are only getting 21 miles per gallon on our Smart Car purchased in February. We use only premium gas and have taken the mileage reading several time. We had the Doug Thorley Exhaust System installed with no improvement. Anyone else having this problem??
Biggest affect on your mileage will be HOW you drive. I do mostly town driving 35 - 50 mph with starts and stops - and my overall average is around 35mpg. On occasion I'll make a 20 - 25 mile trip at 60mph and that will up the tank average. And that's running the A/C most all of the time; we need it here in FL. Oh, and I drive in AUTO all the time. . .