Considering it's doing the automotive equivalent of leaving a turd on the sidewalk everywhere it goes, I'd be really disappointed if its perf and mileage were merely average.
You're not the first to express this sentiment. It feels similar to having a random in a bar bitch at me about my carbon footprint when they hear I burn coal while blacksmithing on the weekend. I appreciate environmental awareness but are you sure you're maximizing your efforts? http://i.dailymail.co.uk/i/pix/2014/07/07/article-2683735-1F...