Teenager Stroll is now the face of experience at Williams

Motor Racing - F1 Formula One - Formula One Test Session - Circuit de Barcelona-Catalunya, Montmelo, Spain - March 8, 2018 Lance Stroll of Williams during testing. Picture taken March 8, 2018. REUTERS/Albert Gea

LONDON (Reuters) - Lance Stroll is still Formula One's youngest driver but the 19-year-old Canadian will also be his Williams team's most experienced man on the starting grid this season.

It is quite a departure for one of the sport's leading constructors, once-dominant former champions whose cars have been graced by a roll call of greats but now without a race win since 2012.