rNio's et5 electric sedan is set to begin deliveries in Sept. 2022.NioBEIJING u2014 Chinese electric car company Nio revealed Saturday a new sedan and custom augmented reality (AR) glasses that reduce the need for in-car screens.Augmented reality is a technology for imposing digital images over the real, physical world. For cars, the tech can let drivers keep their eyes on the road without having to glance down at a dashboard.Nio said it partnered with Chinese augmented reality start-up Nreal for the AR glasses that go with its new sedan, the ET5.The electric car is set to begin deliveries in September…