Smart car mileage – WOW!!! WOW!!! WOW!!! April 19, 2017April 15, 2017 / strivingacres I drove a LOT this past week for work, so I had to gas up twice. 246 miles ÷ 4.503 gallons = 54.63mpg!!! This was ALL highway driving (here to Cleveland and then gas on the way back!!!). Wow!!!!! Share this:TweetShare on TumblrPrintEmailPocketLike this:Like Loading...