The two bars on top of the car are roof rails, roof bars or crossbars.
Roof racks have more than two crossbars and often are modular in design although sometimes the racks see a fixed format with a set number of crossbars.
The point of roof rails on cars and vans is to allow you to haul things on top of the vehicle that either don't fit in the vehicle or would otherwise take up space in the vehicle.
The bars on top of a car are called roof rails which are long bars which run along the length of the car's roof in a front to back orientation.
Many vehicles come equipped with already installed roof rails.
The roof rails are used to secure luggage and other things on top of the car to save room inside the car.
The roof racks are more suitable for large and irregularly shaped items, offering an open and protected space for loading.
Van and car roof bars are ideal for transporting longer and thinner objects, providing a solid horizontal base for securing items securely.
Roof racks on vehicles provide you with efficiency in packing and ensures that your vehicle's interior remains clutter-free, allowing for increased comfort during the journey.
Additionally, it enables you to safely transport bulky items that otherwise would not fit in the car, such as kayaks, bikes, and surfboards.
Roof racks not only improves the storage space of your car, but also increases the legroom inside the vehicle providing a reliable and sturdy mode for transporting sports and other equipment.