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I'm looking for a black car storage solution that can accommodate three vehicles. Specifically, I need to know more about the features you offer, such as the size options, construction materials, and design specifications. It's important that the storage unit ensures optimal protection against weather elements and potential damage. Could you also provide details on the customization options available? I'm interested in any additional features like security systems or ventilation. Pricing information and lead times for delivery would be really helpful as well. Please let me know your best offerings in this regard.