10 Best Car Top Carriers 2026 in the United States

The Thule Motion 3 XXL is a large rooftop cargo box offering 21 cubic feet of storage, ideal for families or anyone needing extra space for trips. It can hold up to 165 pounds, supporting a substantial load for gear or luggage. Made from durable aluminum, it’s sturdy but relatively heavy at 35 kilograms.

Its wing-shaped, aerodynamic design helps reduce wind drag, potentially improving fuel efficiency compared to bulkier boxes. The box mounts easily with the PowerClick quick-mount system, which clicks to confirm secure installation—this tool-free setup is user-friendly, especially for those new to roof boxes. Opening and closing is smooth and can be done with one hand thanks to the wide handle. Security is enhanced with the SlideLock system, which automatically locks the lid and shows when it’s secured, helping keep belongings safe.

However, it is not water resistant, so it is advisable to avoid heavy rain or snow conditions or consider additional protective liners (available as accessories). Its large size means it might not fit all car roofs or low-clearance garages comfortably. This cargo box is suitable for users who prioritize easy mounting, good security, aerodynamic design, and plenty of capacity, while considering its weight and lack of water resistance when planning trips.

The Yakima SkyBox General Travel Vehicle Rooftop Cargo Carrier Box offers a generous 16 cubic feet of cargo space, making it ideal for travelers needing to haul gear for up to three campers, snowboards, or skis. Its NX nano-textured lid and base give it a sleek appearance, while the dual-sided opening feature allows easy access from either side of the vehicle. The inclusion of a removable torque-limiting knob ensures a secure and easy installation process, adding to its practical design.

The SkyBox's unobstructed flattened floor optimizes internal space, and the full metal opening handle facilitates easy loading and locking of gear. Additionally, it is compatible with a variety of crossbars, including Yakima StreamLine, factory, and aerodynamic bars, offering versatility for different vehicle models. However, at 46 pounds, it may be relatively heavy for some users to mount alone.

While the hard-shell plastic material provides durability and water resistance, it might not offer the same level of robustness as some higher-end models made from advanced composite materials. The SkyBox is a solid option for those seeking a spacious and versatile car-top carrier with convenient features for various travel needs.

The Thule Motion 3 LTitan is designed for users looking for a reliable and efficient car-top carrier. One of its standout features is its aerodynamic wing-shaped profile, which reduces drag and contributes to better fuel efficiency—ideal for long trips. The sturdy lid design allows for easy one-handed operation, making loading and unloading a breeze. The PowerClick quick-mount system ensures a secure fit, with an audible ‘click’ that signals when it's properly attached, a comforting feature for those who may be new to mounting roof boxes.

In terms of capacity, this large carrier offers ample storage with a volume of 450 liters, suitable for families or anyone needing extra space for gear. It’s made from durable aluminum, promising longevity and good water resistance to protect your belongings from the elements.

On the downside, the weight capacity at 24.04 kilograms might limit how much you can pack, especially if you have bulky items. Some users might find the size a bit cumbersome, making it challenging to handle without assistance when not mounted on the vehicle. Additionally, while the SlideLock system provides added security, it’s crucial to ensure that the lid is locked correctly, as mishaps can occur if not checked. This product suits families and outdoor enthusiasts needing extra space for their adventures, balancing performance with user-friendly features.