Custom fit kit for mounting a Thule roof rack to vehicles without pre-existing roof rack attachment points, or factory-installed racks. Check the Thule Buyer's Guide to find out which fit kit fits your car. Fit kit for vehicles without pre-existing roof rack attachment points or factory-installed racks. Compatible with Thule Evo Clamp and Thule Edge Clamp foot packs. Fit cars: BUICK Regal 5-dr Sportback with Normal Roof 2018 - 2019. Spot Wash. Imported. 91021705531 33983400006 145078