Struggling Red Bull complete longest run of the winter on Day Two at Bahrain
World Champs introduce 'emergency' cooling vents on the RB10 but remain critically short of meaningful mileage ahead of new season
Friday 28 February 2014 19:38, UK
Red Bull completed their longest stint of the winter so far - albeit a modest twenty laps in the coolest conditions of the day - as the World Champions enjoyed their most positive session of pre-season testing on Friday.
