Types Roof RacksRoof racks are one of the most common types of car racks. They sit directly on the roof of your vehicle and extend over the roofline. Roof racks allow you to securely fasten cargo directly to the top of your car. The most common roof rack types are:- Bars: Simple horizontal bars that run from front to back on your roof. Cargo is tied down onto the bars.- Boxes: Hard-sided...