'My worst time in Montreal,' says struggling Lewis Hamilton

Lewis Hamilton declared his car to be undriveable after what he called the worst Montreal experience of his career in Friday's practice for this weekend's Canadian Grand Prix. The seven-time world champion, who claimed his maiden Formula One victory at the Circuit Gilles Villeneuve in 2007 and has triumphed a record seven times at the track, managed a smile after finishing 13th in second practice.