If you're looking to add a roof rack to your leased vehicle, there are a few things you'll need to keep in mind. First, check with your leasing company to see if they allow modifications to the vehicle. If they do, then you'll need to purchase or lease an aftermarket roof rack that's compatible with your car. Make sure to get all the necessary hardware and installation instructions from the manufacturer before attempting to install the rack yourself. Once everything is installed, be sure to regularly check the rack and make sure it's secure before heading out on any long trips.