Well my s3 sold a few weeks ago for something a bit bigger and a bit better on fuel. I went for a test drive in a 2011 A4 avant sline quattro 170 on saturday and really liked it and it ticked all my boxes. Now when i was flicking through the mpg readings it seemed quite low ( 28mpg) im going to go an have another look tomorow and try and take it on a longer test drive but should this ring warning bells? I had the pd170 engine in my old golf and used to get around 45mpg, im expeting it to be a little lower due to the extra weight and quattro but what would you be expecting to get?