If gas mileage is the issue why not a hybrid Camry or Altima? Bigger car, better mileage and the seats are very comfy. OK so the expense kind of kills the savings in fuel but they are very nice to drive. I have an 07 Camry(not hybrid) and the seats are very nice although I do find them a touch narrow with the side bolsters, but I am not exactly average width.

Jason
M80 v2
VP160 v3
QS8 v2
PB13 Ultra
Denon 3808
Samsung 85" Q70