Granted the terrain usually decides how well a particular vehicle does. It would seem that Most automakers play the numbers game and do well on the epa, (and for us hypermilers) but not so well when it comes to the average driver.
http://www.cars.com/go/crp/buyingGui...ories&year=New
Car EPA mileage Trip computer mpg
2011 Honda CR-V 21/28 28.8
2011 Hyundai Tucson 22/31 28.8
2011 Subaru Forester (AWD) 21/27 28.2
2011 Toyota RAV4 22/28 27.7
2011 Chevrolet Equinox* 22/32 27.7
2011 Nissan Rogue 22/28 27.4
2011 Dodge Journey (V-6) 17/25 27.0
2011 Ford Escape 21/28 26.7
2011 Kia Sportage 22/31 26.6
Note that the Dodge Journey was the only V-6 of the bunch and the Forester was AWD.
Additionally, I concede that trip meters could be off slightly, but within reasonable amounts. Comments?