Different brake discs and different brake cooling ducting. Presumably the drivers have differing preferences for the brake systems. Bit more complicated to manage having to design, build and stock separate systems for each car during the season.stefan_ wrote:2014 Australian Grand Prix - Thursday, 13.03.2014
http://i.imgur.com/4i3WwrE.jpg
http://i.imgur.com/1jbA66A.jpg