Four times world champion Sebastian Vettel announces retirement from Formula One

Four times world champion Sebastian Vettel today announced his retirement from Formula One at the end of the season. The 35-year-old said, his goals had changed and he wanted to focus more on family and interests outside the sport.   Sebastian will end his final season with Aston Martin after winning a total of 53 Grand Prix and 122 podium finishes. Vettel made his debut in 2007. His first title win came in 2010 which also made him the youngest title winner. He won four titles for Red Bull in be...