Yes, you can legally and safely put suitcases on top of your car in 2026, provided you use an approved roof rack, cargo box, or soft-shell roof bag. Modern safety regulations strictly prohibit "naked" loading—strapping luggage directly to the roof metal—as it can damage the vehicle's structural integrity and create a lethal projectile hazard. Most passenger cars have a dynamic roof weight limit between 50kg and 75kg (110–165 lbs); exceeding this significantly raises the vehicle's center of gravity, increasing the risk of a rollover during sharp turns. For long-distance travel, aerodynamic hard-shell pods are preferred as they protect contents from theft and weather while minimizing the "drag" that can reduce fuel efficiency by up to 20%. Always ensure your load does not exceed 4 meters in total height from the ground and does not obstruct the driver's view or any external vehicle lighting.