What is the real-world range of the smart #5? How much does highway driving with AC affect it?

Based on the 100 kWh battery and WLTP figures (590 km for Premium, 540 km for Brabus) , real-world mixed driving should comfortably deliver 450-500 km for the Premium. On pure highway at 110 km/h with AC, expect around 400-450 km – still excellent for long trips. The 800V architecture and efficient powertrain mean it's one of the most efficient in its class . And when you do need to charge, 15 minutes gets you back to 80% .