In recent years, he has been retained as the senior test driver for Porsche road cars, famously setting quick laptimes for them testing round the famous Nürburgring Nordschleife, for example with the Porsche Carrera GT.
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In the 1992 24 Hours Nürburgring race which saw fog and heavy rain in the night, he hardly slowed down, anticipating the corners by timing.
Walter Scott | Sir Walter Scott | Walter Cronkite | Walter Raleigh | Walter Benjamin | Walter Mondale | Walter Matthau | Walter Gropius | Walter Hamma | Walter Savage Landor | Walter Burley Griffin | Walter Payton | Walter | Bruno Walter | Walter Winchell | Walter Crane | Walter Rilla | Walter Koenig | Walter Brennan | Walter Sickert | Walter Pidgeon | Walter Isaacson | Walter Damrosch | Walter Crickmer | Walter Brueggemann | Walter Reed | Walter Browne | Little Walter | Walter Runciman, 1st Viscount Runciman of Doxford | Walter Rothschild, 2nd Baron Rothschild |
After he stopped driving, he became founder of the British Dealer Opel Team (DOT) as well as the self-willed but successful director of the Opel Motorsport Team in Germany, for which Walter Röhrl won the World Rally Championship for Drivers in 1982 with an Opel Ascona 400.