McLaren was surprised to suffer a problem with its power unit on the opening day of pre-season testing, with racing director Eric Boullier describing the Honda issue as "disappointing."Honda discovered an oil system issue after the installation lap on the first day of testing at the Circuit de Barcelona-Catalunya, forcing...

McLaren driver Jenson Button believes next year's new-look Formula 1 cars will scare drivers again.The 2009 world champion feels Pirelli motorsport boss Paul Hembery's suggestion that the 2017 cars would drive like they are "on rails" thanks to a major hike in downforce are wide of the mark.Related StoriesButton compared...