On my commute, I drive highway and a good stretch of 45mph speed limit road. Typically, I will get about 23.5-24.5 mpg with that type of driving. I did get 29.5 on a long trip all hwy once. I do some mixed driving at times and have not seen my average go below 21.5 mpg. Overall, for the size and power of this car, I think the gas mileage is excellent. Keep in mind that the 3.8L V6 is reported to improve only 1 mpg than the 4.6L. I'm not sure how this holds up in the real world though.