The pack can also be fitted to existing Firefly cars. Owners using BaaS must pay a 3,000-yuan service fee, while customers who own their battery pay a 17,000-yuan price difference. The car measures 4,003 mm long, 1,781 mm wide and 1,557 mm tall, with a 2,615 mm wheelbase and a 92-litre front trunk. Battery swaps are currently supported only at Nio’s fifth-generation swap stations, which remain limited in number.