Without doubt, Audi wouldn’t be where it is today without the original Quattro of the 80s (and a healthy dose of capital from the Volkswagen Group, of course). At the 2010 Paris Motor Show, the firm paid homage to the car's 30th anniversary by showing a slick conceptual tribute.

Three years on and it seems that a small-series production version might have been green-lighted by the Ingolstadt big-wigs. Rumours in the automotive press have sparked up again this week, and then been further fuelled by these official design sketches of Audi’s 2013 Frankfurt show car. As you’d expect, details are scarce as yet, but you can be sure to get all the most important Frankfurt news as it happens here on Classic Driver.