The first side put into the slots is the driver side, the passenger side is clicked into place second. This creates the least wear on the roof gasket. When removing, you unlatch the passenger side, then, once the tension is released, you undo the driver side. Obviously this works well when the driver side is the same as the American passenger side. The drivers in England can easilly pop in and out by simply undoing their side.
Storm titanium 2005 Elise with carbon fiber spoiler, BWR sway bar, BOE toe links, gPan2, LidBone, sector 111 wheel studs, Grey RAC Monolite wheels with toyo R1R, Team Dynamics 1.4 with Hoosier A6/R6s, Katana2 Supercharger, ECU with 265 flash. PPE headers w/decat, CEL angle eliminator, Silent touch catback, Rear Panel Eliminator, HKS intake, V2 fuel tank, Walbro255 fuel pump. HID lights.