Many different skills were required to create the coach, which was the largest coach seen in Great Britain at the time and one of the grandest coaches ever built. The wooden structure used a wide range of craft skills including carving, gilding and chasing. Painted panels on the body were commissioned from the artist Giovanni Battista Cipriani, and the coachbuilder Samuel Butler assembled the parts and slung the coach body from the chassis with a sprung suspension using broad leather straps. A new set of harness originally using blue leather and now changed to a red, was commissioned, which featured ormolu mounts showing the royal coat of arms.