I'm currently showing 14.7 mpg on my DIS after a couple of hundred miles of local driving, I'll do a check when I fill up and compare. I suspect it isn't far off as I've seen it as low as 15 mpg several times. I'm filling up for a jaunt up the east coast to Monifieth this weekend so should get a chance to get it to 20+mpg, we'll see
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Audi D3 S8 - 2007 - V10. B&O, Phantom Black, black and silver interior, and still completely standard with everything working as it should
Audi TT - 2015 - Ultra