Nio Day 2021 marked the coming of the all-new mid-size sedan called the ET5. Smaller than the Nio ET7, the new ET5 is Nio answer to the Tesla Model 3 and the Polestar 2. Nio plans to sell it in China with a 150 kWh battery pack, two electric motors good for 480 horsepower, and a claimed range of 620-miles. That is just the start, tough.