The Chevrolet Sonic is excellent for a first car. It is fun to drive, inexpensive, and fuel-efficient. However, Chevrolet Sonic is such a small car with less cargo capacity for an outdoor lover.
The Goplus Cargo Box is a light-weight roof box that will fit perfectly on the Chevrolet Sonic. With its 14 cubic feet of storage, it offers you enough space for your essential items while on the move. Sure, with a roof box that allows such an enormous cargo capacity, you won’t need to sacrifice the backseats just to stack a few bags.
Made to cut through the wind, it comes with a great aerodynamic design that neither causes drag, make noise on the roof, nor affect the mileage. It’s design and outlook also doesn’t subtract from the aesthetics of your car.
The Goplus Cargo Box is also made with heavy use in mind. The hard-shell protects your items from the ravages of bad weather, and the sturdy ABS material that it’s made of strengthens it to serve you for long.
Thule Motion XT Rooftop Cargo Carrier

Thule Pulse Rooftop Cargo Box, Medium

Conclusion
In summary, many roof boxes in the market can fit Chevrolet Sonic; its small size makes it compatible with lots of them. However, when you consider cargo space, durability, ease of installation, and aerodynamics, nothing comes close to the roof boxes above.