The world’s most fabled rally driver Walter Röhrl is about to make a comeback to competitive racing when he pilots a Porsche 911 GT3 RS at this year’s Nürburgring 24hour race. Considered by many as the most versatile and talented driver of all time, the 63-year-old Bavarian is a former double world rally champion. For those too young to have witnessed his rallying heroic in the 1980s, Röhrl is better known for his mastery of the world most challenging test circuit – the Nürburgring.Röhrl during a seat fitting for the GT3 RS. He might look like some retired German bloke, but even at 63 his driving abilities are mercurial. Don't call him grandpaDespite being nearly of pensionable age, Röhrl is still a kingpin in Porsche’s test and development programme and routinely sets staggering quick benchmark lap times for the company’s products at the Nürburgring.The legendary German's big return to racing is due at the Nürburgring 24 hour event - scheduled for the 15th and 16th of May. Röhrl will be part of a team of four drivers, the others being former DTM racer Roland Asch and journalists Horst von Saurma-Jeltsch and Chris Harris.Röhrl and his team mates will use two lesser VLN races to familiarise themselves with the 911 GT3 RS, which is to be left in stock trim (mechanically) for all three races – thus proving its authentic track certified engineering heritage."I’m sure we will quickly familiarise ourselves with the track and the car," said a confident Röhrl. "We’ll need to practice our pit stops. After all, it was 17 years ago that I last made a driver change at race speed."