Most concept vehicles are largely created because the automaker wants to promote something for future production vehicles. That formula has been tried and tested so many years that it’s become normal for people like us to expect them. Such is the case with Audi’s new E-Tron Sportback Concept, which is actually promoting a lot of things, not the least of which is the company’s overarching electric crossover agenda. But there is one aspect about the E-Tron Sportback Concept that Audi really wants us to pay attention to. It’s the LED lights, and for what they’re all worth, there are a lot of them.