Solar energy reaching your Tesla arrives as visible light, ultraviolet and infrared. A nano-ceramic film like Kepler IR or IR+ is designed to address that energy across the spectrum, rather than simply darkening the glass, which is why the range includes light shades that still perform. The practical effect is a cabin that heats up less in strong sun and interior surfaces that get less ultraviolet exposure over time. How much difference you notice depends on the film and shade you choose, the glazing already fitted to your car and where it spends its days. Ask the dealer handling your enquiry for the specifications of the exact film you are considering so you can compare like with like.
Ask a local tinter whether they carry Kepler film or can get it today quick quote