Today, on our 2012 Infiniti G37, we'll be test fitting the Thule Sonic XXL Rooftop Cargo Box, measuring 22 cubic feet, in metallic silver, part number TH636S. With the Thule Rapid Traverse Roof Rack System on our vehicle, we'll begin our test fit by placing the Sonic directly onto our load bars. With the feet hanging out of the bottom of the box, we can adjust them as necessary to fit around each… see more >