"Youth will be served". So goes the old English proverb and never was it more true than at today's Daytona 500. Trevor Bayne , who celebrated his 20th birthday yesterday, became the youngest driver to ever win the grand-daddy of auto racing, The Daytona 500. Carl Edwards finished 2nd followed by David Gilliland.Bayne-who drives for the Wood Brothers team-is some 5 years younger than the previous youngest winner Jeff Gordon who was 25 when he won in 1997.