Working with supplier 3M, General Motors engineers have developed what they claim is an industry-first LED taillight technology that delivers a soft, uniform red glow in a complex and unique shape. It is being deployed first on the MY2013 Buick Enclave, then will be cascaded to other Buick models, the company says. The uniform glow is made possible by 3M's Uniform Lighting Lens technology, which uses a precision engineered, micro-patterned, thermoformable polycarbonate material that provides even illumination around complex shapes with fewer LEDs, reducing both complexity and energy use, according to GM.