I just joined, and I was hoping to see this very thing. I quickly saw the problem with this, as in my own vehicle class, someone managed to enter 2402 mpg, and not surprisingly, is listed as "Top of garage". I did see a couple of other mpg reports from Matrix owners that are unrealistically high, but only by a few mpg.
This is a great concept, but as often the case, along comes a bonehead to mess with a good thing.
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