McLaren MP4-30 © Giorgio Piola
McLaren have been using the brake drums above with oval holes since the start of the season and in Monte Carlo Ferrari have adopted a similar solution on Sebastian Vettel’s car. In the drawing of the SF15-T below the round brake drum - or ‘cake tin’ as it is commonly known - is missing, allowing you to see the oval openings that have been added in front of the brake disc.
Ferrari SF15-T © Giorgio Piola