Nio has unveiled the first electric vehicle under its Firefly budget brand, a hatchback with Honda e design cues.The Firefly EV will debut in China in April and arrive in Europe in the second half of 2025.It supports battery swapping from Firefly-specific swap stations, which cost a third compared to Nio's current stations.Firefly EV will be sold through existing dealer networks, with a subscription-based 'battery as a service' model.