FullShade 1.0 is a one-piece complete product. FullShade 2.0 is an assembly-style product.There are some upgrades to Fullshade 2.0 for Model Y. Seamless Integration: We've changed the full-frame design to a 4-pieces assemble type design, which greatly reduces the product's volume, solving transportation restrictions and lowering shipping costs. Expanded View: We've optimized the frame to minimize its width, increasing the visible skylight area by 13% compared to the previous generation. More Friendly in Usage: The curtain, which originally opened 5/5, has been changed to 3/7, making it easier for the driver to open and close the sunshade. Much Cheaper in Price: The upgrade frame is more convenient for shipping, which allows us to provide a lower price for our customers. The upgraded Fullshade still uses the same heat-insulating material as the first generation, maintaining excellent heat insulation performance. The only difference is the lower shipping costs, which result in a lower price. We hope that it will become cheaper and that more Tesla users will be able to purchase this product at a lower price.