I don't know what "great" gasmileage is, but nowadays, it seems to be 30's and 40's... and this is supposed to be new technology!! the 1971 VW Bug I had went between 40 and 60 mpg... depended on direction of wind. that's nearly 40 y/o technology!! and reliable as anything I've ever owned... even at almost 300k miles!!!
must of been well maintained