Optimized design for maximum space efficiency, aerodynamics, and optimal vehicle mounting. Easy assembly thanks to the extra-wide, pre-installed PowerClick quick fastening system. The integrated torque indicator signals with a click sound when the box is properly mounted, ensuring a quick and secure attachment. User-friendly external handles and practical lid lifters make it easy to open and close in any situation. The SlideLock system with separate locking and unlocking functions automatically secures the lid and indicates when the box is safely closed. Unrestricted access to the trunk and minimal risk of contact with the cargo box due to its forward-positioned placement on the vehicle roof. The Thule Motion XT roof box is designed not only for maximum space efficiency and ease of use but also harmoniously complements today's vehicle design. It features a distinctive shape optimized through advanced computer simulations, positively impacting fuel consumption and allowing for a quiet ride without disturbing noises. With the Thule Motion XT, Thule sets new standards in the design of modern roof boxes. This elegant, quiet, and user-friendly cargo box enhances the appearance of your vehicle. It is the successor model to the bestselling Thule Motion 800 XL (460 l).