Our friends at <a href=\"http://www.cars.com/go/crp/buyingGuides/Story.jsp?referer=&year=New§ion=Sedan&story=46ksedanOverview&subject=stories\">Cars.com</a> had an idea. Bring together the best of the current crop of mid-size sports sedans and pick a winner. But it\'s not the normal two guys driving them back to back and deciding. Instead Cars did what they do best by looking at the question from the consumers point of view. Of course the line-up was impressive: Acura TL, Audi A4, 2013 BMW 328i, Cadillac ATS, Mercedes-Benz C250 and the Volvo S60. The winner?