i have a traiblazer. i get about 20 highway. i couldn't tell you city b/c i live in th boondocks and don't often drive in city traffic. my town has one main 4-way stop and no stop lights. but we do have a DQ!
i worry about gas, especially b/c i drive 70 miles roundtrip every day for work. i just don't think i could ever drive a car again. my only car was in HS and i loved my honda accord. then inherited an old jeep cherokee (not the grand, just a plain one) and LOVED it until some lady totalled it for me by turning in front of me. After that accident, i just can't imagine driving a regular car again! ANd my husband is 6' 7", so it's not like i can get something small! He barely fits in my SUV as it is. I guess i am stuck with at least a mid-sized SUV, unless he decides to shrink a few inches.