I've consistantly been getting 21 to 22 MPG, about half of my daily trip to work is on I-4 and the other half is down US 441 stop light to stop light and all city driving going home about 23 miles each way (you can't buy a spot on I-4 in the afternoon).

I did a trip from Orlando to just south of Melbourne and got just over 26. These are realistic numbers from actual driving and no BS.