Actually, I wouldn't let gas mileage bother me on deciding between an R/T and an SRT. From what I'm reading here, the SRT guys are getting just as good as I am. Normal driving for my R/T is a lot of stop and go city driving where I average 12.5 MPG. I make a few out of town runs and I get about 17-19 MPG. Steady Interstate at 70 to 75 MPH and it gets 21.5 to 23 MPG. Very similar to the SRT's.