By GMM David Coulthard says he will contest his final British grand prix on Sunday without any regrets about his formula one career.The 37-year-old Scot announced on the eve of the Silverstone event that, after 15 consecutive seasons, he is to retire as a grand prix driver at the end of 2008.After Brazil in November, he will have contested nearly 250 races, winning 13 times first for Williams and then McLaren."I've had a long career and many good opportunities, said Coulthard , who now drives for Red Bull .In 1998 and 1999, Coulthard 's McLaren teammate was Mika Hakkinen , who won both those drivers' crowns."I'll come out of this (year) knowing I had world championship-winning cars. I'm not going to think, 'Damn, I never had that chance'," he told the Daily Telegraph ."I did get that chance, but I never quite delivered the ultimate result."
F1: Coulthard - no regrets as F1 career nears end