Inside Mercedes' controversial F1 wheel rims

Mercedes' wheel rims have been subject to much discussion inside and outside the F1 paddock in recent weeks, but despite getting clearance from the FIA that it believes the innovative solution is legal, the team has not used it in the last two races. Our new technical editor Jake Boxall-Legge joins Glenn Freeman to explain how the design functions, and why there is such a debate over its legality - using our updated 3D animations to illustrate the wheel assembly like never before.