The challenge in designing any convertible lies in retaining a high degree of torsional rigidity throughout the body whi设计敞篷车的挑战在于既要保持出色的车身扭转刚性，又要减轻重量。
Torsional rigidity is vital to minimise the scuttle shake associated with most convertible cars and to help maintain the对于大多数敞篷车，扭转刚性对减小风挡振动和保持动态稳定性特别重要。