I get 20-21 on the highway and maybe 13-15 in town. I live in a small town, very stop-go with mostly 20-30 mph speed limits.

This was about all I wanted to spend, only an XL with the power group and XL plus package but still hit over 30k. If I could afford it I would have gone with the EcoBoost. IIRC it puts out a tremendous 420 ft-lbs. of torque at only 2500 rpm. The normally aspirated V6 and V8s are certainly more proven but Ford did a lot of testing and evaluation for the twin-turbo EcoBoost engine before releasing to the public. The 3.7 is still a pretty good engine though, I think it has a lot of oomph for its size.