(without offense) I'm coming off of 20 years with a 5.0-liter Mustang that never got more than 17mpg. I've had the 2013 S sedan for one week, still on the original tank of gas, and my average mileage has been slowly climbing up to (now) over 27. This is with a good mix of traffic, highway, and "spirited" driving. I'm loving it! I've also been on vacation this week, and go back to my regular commute of 30 miles traffic and 30 miles highway starting tomorrow, so I'm looking forward to seeing what I get with the next tank. I don't ever expect to see the projected 36mpg on the top end, but 27mpg for how I drive is a revelation. And I drive like an idiot.