Driving with a roof box on your car is safe and legal, as long as you adhere to the speed limits specified by your vehicle's handbook or manufacturer. It is important to note that driving at excessive speeds can damage or even dislodge the cargo box, so it’s best to stick to the recommended speed limit when travelling with a roof box. It is also worth bearing in mind that the extra weight of the cargo box will affect the performance and handling of your vehicle, so always drive carefully and avoid sudden turns or braking. If you’re ever unsure, it’s best to speak to your local garage or dealer for advice on driving with a roof box attached. With all this in mind, there are plenty of options available for those looking to fit a roof box to their car. Whether you’re heading off on an adventure or simply need more space, the right roof box can open up a world of possibilities and provide extra storage when travelling with family or friends.