So I bought my REX on 9/15/11 and have just now taken it on the highway to go on a little trip to a mall.
Iv been tracking my 100% city MPG and been getting around 31-34 MPG
I filled up right before we got on the highway, drove there and back, and filled up again right off the highway and got a insane
58.97 MPG!! 
If I knew I was going to be so close to 60 I would have kept the windows rolled up and have taken all the tools and stuff out of the back (and maybe threw on a grill block
)
That's by far the best gas mileage iv gotten in any car iv ever owned. I think the best MPG I ever managed to get in the 2000 Neon was 35.xx mpg and with my 1997 Accord, with my best efforts got a horrible 24.xx mpg
Im a pretty happy man today, haha. Now I can tell people my combined 50%/50% MPG is about 45 mpg, and that makes my day for sure.