I wonder how the track took that abuse and if they had to pick out carbon splinters from it.
Carbon is made of weaved 'ribbons', it doesn't splint. It fractures, and can just tear to bits
*Carbon fiber has very high tensile strength due to the carbon fibers encased in epoxy. If you pulled a piece of carbon fiber it will withstand a high degree of force before failure.
At the same time carbon fiber is succeptable to facture caused by impact. That is the reason many comsumer goods have a backing material in addition to the carbon fiber. This helps strengthen the carbon fiber in the "fracture department"...*
Carbon is made of weaved 'ribbons', it doesn't splint. It fractures, and can just tear to bits