The Volkswagen ID.3's cousin - Cupra Born - was recently tested in Bjørn Nyland's 1,000 km (621 miles) challenge, which highlights range, efficiency, and fast-charging performance.
According to the video, the Cupra Born with a 62 kWh battery (58 kWh usable) completed the distance, at an average temperature of 0°C, in 11 hours and 30 minutes (after some time deductions).
The result happens to be some 45 minutes worse than the Volkswagen ID.3 1ST with the same battery but tested at a higher temperature (14°C). We can only guess that in optimum conditions, the result would be closer to the 11 hours posted by the Volkswagen ID.3 1ST.