Vettel to Audi? Why the German should and should not make a comeback!

To say that Audi’s search for a second driver alongside Nico Hulkenberg is an uphill battle is an understatement. A myriad of names have been mentioned, but the future factory team – currently Sauber – still does not have the line-up complete. German-language media are now speculating about bringing Sebastian Vettel out of retirement. We list why the four-time champion should and should not do so.