We researched and compared the top cargo boxes for cars based on manufacturer specifications, published industry safety standards (including TUV and FMVSS), and aggregated owner feedback. Our evaluation focuses on real-world performance, durability, ease of installation, and security. Below are our findings.

Photo Product Score Buy
Thule Motion XT L Thule Motion XT L
Best Overall
16 cubic feet, 165 lb capacity, dual-side opening, fits up to 4 pairs of skis
9.1 🛒 Check Price
Yakima SkyBox 16 Carbonite Yakima SkyBox 16 Carbonite
Runner Up
16 cubic feet, 165 lb capacity, HD dual-lock system, fits crossbars up to 24" apart
8.8 🛒 Check Price
SportRack Vista XL SportRack Vista XL
Best Value
18 cubic feet, 150 lb capacity, rear opening, fits most factory racks
8.2 🛒 Check Price
INNO Wedge 660 INNO Wedge 660
Compact and Lightweight
11 cubic feet, 110 lb capacity, 33 lbs weight, side opening
8.0 🛒 Check Price
🚗
Rola 59001 Vortex
Budget Pick
12 cubic feet, 100 lb capacity, universal mounting, black ABS plastic
7.8 🛒 Check Price
Goplus 15 Cubic Feet Roof Mount Cargo Box Goplus 15 Cubic Feet Roof Mount Cargo Box
Large Capacity Value
15 cubic feet, 150 lb capacity, dual-side opening, ABS material
7.5 🛒 Check Price
Malone Auto Vans MPG 155 Malone Auto Vans MPG 155
Economy Choice
11 cubic feet, 75 lb capacity, rear opening, fits most crossbars
7.3 🛒 Check Price

1. Thule Motion XT L: Best Overall

Thule Motion XT L

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In our research, the Thule Motion XT L consistently earns high marks from owners for its aerodynamic shape and quiet operation. The PowerClick mounting system is widely praised for its ease of use and secure fit. Based on owner feedback, the box remains stable even at highway speeds and in crosswinds. The dual-side opening is a practical feature that many users appreciate.

However, the Motion XT L is one of the more expensive options on the market. Those on a tight budget or who only need occasional use may find better value elsewhere. Also, the 16 cubic foot capacity may be overkill for smaller vehicles. If you have a compact car or limited roof space, consider a smaller model.

  • Aerodynamic design reduces wind noise and drag, improving fuel efficiency.
  • Dual-side opening for easy loading from either side of the vehicle.
  • PowerClick quick-mount system with torque indicator ensures secure installation.

Pros: Excellent build quality and weather sealing.; Sleek, low-profile design fits many vehicles.
Cons: Premium price point may not suit all budgets.

2. Yakima SkyBox 16 Carbonite: Runner Up

Yakima SkyBox 16 Carbonite

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Our research indicates the Yakima SkyBox 16 Carbonite is a close competitor to the Thule Motion XT. Owners frequently highlight the durable textured finish that hides minor scuffs. The tool-free installation is straightforward, and the dual-lock system provides peace of mind. Based on spec sheets, the aerodynamic shape helps reduce drag.

A common criticism is the weight: at 48 lbs, it’s heavier than some comparable boxes. This can make mounting and unmounting more difficult for some users, especially if you need to remove it frequently. If you have a smaller vehicle or limited upper body strength, you might prefer a lighter option.

  • Carbonite textured finish hides scratches and is UV-resistant.
  • Tool-free installation with quick-release mounting brackets.
  • Integrated HD dual-lock system with one key for both locks.

Pros: Durable, scratch-resistant exterior.; Secure locking mechanism with easy key access.
Cons: Slightly heavier than some competitors at 48 lbs.

3. SportRack Vista XL: Best Value

SportRack Vista XL

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We found the SportRack Vista XL offers the best capacity per dollar in our comparison. Owners appreciate the large 18 cubic foot space, which can accommodate bulky items like camping gear or multiple suitcases. The rear-opening design is particularly useful for SUV owners who can load from the tailgate. Installation is straightforward with basic tools.

However, the trade-off for the low price is less refined aerodynamics. Several owners report increased wind noise and slight drag at highway speeds. The latch mechanism has also received mixed reviews for durability over long-term use. If you prioritize quietness and premium build, consider a higher-end model.

  • Extra-large 18 cubic foot capacity at a budget-friendly price.
  • Rear opening design allows loading from the back, convenient for SUV tailgates.
  • Compatible with most factory and aftermarket crossbars.

Pros: Generous capacity for the price.; Easy to install with included hardware.
Cons: Not as aerodynamic; wind noise can be noticeable at higher speeds.; Latch mechanism can be finicky over time.

4. INNO Wedge 660: Compact and Lightweight

INNO Wedge 660

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Our research shows the INNO Wedge 660 is a top choice for compact car owners. At 33 lbs, it is one of the lightest boxes available, making it easy to handle. The wedge shape is designed for aerodynamics, and owners report minimal wind noise. The central locking system is convenient with a single key.

However, the 11 cubic foot capacity is relatively small. If you need to carry multiple suitcases or bulky gear, you may find it limiting. Additionally, some owners mentioned that the mounting brackets require careful adjustment for a perfect fit. If you have a larger vehicle or need maximum cargo space, look elsewhere.

  • Lightweight at only 33 lbs, easy for one person to mount.
  • Aerodynamic wedge shape reduces drag and wind noise.
  • Central locking system with push-button release.

Pros: Very easy to install and remove due to low weight.; Sleek design fits smaller cars well.
Cons: Limited capacity may not suit large families or long trips.; Mounting brackets can be tricky to align initially.

5. Rola 59001 Vortex: Budget Pick

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The Rola 59001 Vortex is our budget pick for those who need a cargo box without breaking the bank. Based on owner feedback, it provides adequate protection from the elements and fits a variety of roof racks. The universal mounting system is straightforward, and the lockable lid offers basic security.

However, the overall build quality is not on par with Thule or Yakima. Some owners report that the latch mechanism can be stiff and requires effort to close properly. The 100 lb weight limit is lower than many competitors, limiting what you can carry. If you plan to use a cargo box frequently or for heavy loads, investing in a higher-quality model is advisable.

  • Affordable price point for budget-conscious buyers.
  • Universal mounting system fits most crossbars.
  • Lockable lid with included keys for security.

Pros: Very budget-friendly.; Lightweight and easy to store when not in use.
Cons: Build quality feels less robust than premium brands.; Latch can be difficult to close securely.

6. Goplus 15 Cubic Feet Roof Mount Cargo Box: Large Capacity Value

Goplus 15 Cubic Feet Roof Mount Cargo Box

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Our research found that the Goplus cargo box offers a lot of space for the money. Owners appreciate the dual-side opening, which makes loading easier. The 150 lb capacity is adequate for most family trips. The ABS plastic construction is lightweight but feels less premium.

However, the main drawback is wind noise. Many owners report loud whistling at highway speeds, which can be annoying on long drives. The installation instructions are also criticized for being vague, leading to initial setup frustration. If you drive mostly at low speeds or can tolerate some noise, this box provides good value. Otherwise, consider a more aerodynamic option.

  • Large 15 cubic foot capacity at a competitive price.
  • Dual-side opening for easy access from either side.
  • Includes mounting hardware and lockable latches.

Pros: Good capacity for the price.; Dual-side opening is convenient.
Cons: Aerodynamic performance is poor; significant wind noise reported.; Installation instructions can be unclear.

7. Malone Auto Vans MPG 155: Economy Choice

Malone Auto Vans MPG 155

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The Malone Auto Vans MPG 155 is an entry-level cargo box for those on a strict budget. Based on owner feedback, it works for light loads like blankets or small bags. The rear opening is convenient for SUV owners. At 26 lbs, it is one of the lightest boxes we researched.

However, the 75 lb weight capacity is significantly lower than most competitors, meaning you cannot carry heavy items like camping gear or multiple suitcases. Several owners report that the latch and hinges feel less durable and may not withstand frequent use. If you need a cargo box for occasional, light-duty use, it may suffice. But for regular trips or heavier loads, we recommend spending more for a sturdier model.

  • Very low price point for occasional use.
  • Lightweight design at 26 lbs.
  • Rear opening for easy access from vehicle tailgate.

Pros: Extremely affordable.; Light and easy to handle.
Cons: Low weight capacity (75 lbs) limits cargo options.; Latch and hinges feel flimsy; durability concerns.

Frequently Asked Questions

How do I choose the right size cargo box for my car?

Measure your roof length and crossbar spacing. Consider the volume you need: 11-13 cubic feet is good for 2-3 people, 15-18 cubic feet for families. Also check your vehicle’s roof load capacity (typically 100-165 lbs) and ensure the box weight plus cargo does not exceed that.

Will a cargo box affect my gas mileage?

Yes, any roof box creates drag and reduces fuel economy. Aerodynamic boxes like the Thule Motion XT minimize the impact, but you can expect a 10-25% decrease in MPG at highway speeds. Removing the box when not in use helps.

Are cargo boxes safe for my car's roof?

When installed correctly according to manufacturer instructions, cargo boxes are safe. Use a torque wrench for mounting and check tightness periodically. Ensure your roof rack system is rated for the combined weight of the box and cargo.

Can I install a cargo box on any car?

Most cars with factory roof rails or aftermarket crossbars can accommodate a cargo box. However, vehicles with sunroofs or low roof load limits may have restrictions. Always check compatibility with your specific make and model.

How do I maintain and clean a cargo box?

Wash with mild soap and water, avoid abrasive cleaners. Lubricate locks and hinges annually with silicone spray. Store in a cool, dry place when not in use to prevent UV damage. Inspect seals for cracks and replace if needed.

Our Verdict

After researching and comparing specifications, safety standards, and owner feedback, our top pick is the Thule Motion XT L for its excellent aerodynamics, build quality, and ease of use. The Yakima SkyBox 16 Carbonite is a close runner-up, offering similar performance with a scratch-resistant finish. For budget-conscious buyers, the SportRack Vista XL provides great value despite some wind noise.