I have an 7 seater SUV and travel quite a bit, however till now the max complement of people that travel in my car were not more than 5 people, hence never needed a carrier for luggage. However, recently I had the need to travel with 7 occupants and their luggage for a period of 5 days. To do so I would've had to invest in a luggage carrier and fit it on my SUV, but I was not keen on doing so as after the trip I would remove the carrier and will need to store the same, for which I don't have space in my house. Enter the Amazon Basics Rooftop Car Carrier Bag, and I am blessed. This amazing carrier bag comes in a very small tote bag (no bigger than a 5 litre water can) which can be easily stored in the boot of your car. But when opened the real magic starts, it is big enough to hold 3 - 4 mid sized suitcases and a couple of duffle bags. The straps on this bag can be strapped to your car's roof rails and tightened ensuring that your luggage stays in it's place. Being waterproof, it ensures that your luggage doesn't get wet even in heavy rains. Only problem is that it fits only cars with roof rails that too the ones which have gap between the roof and the rail for the straps to be fitted. Important Note: This cannot be installed on cars which don't have roof rails.