I checked one ATTO 3, and there was a loud noise inside the cabin — it sounded like a compressor or motor. I'm not sure if it was a faulty unit, but the noise was quite annoying. The AC blower was also loud when the owner used remote start.
Have you noticed any similar noise inside the cabin? For comparison, my Elantra's cabin is much quieter.
I didn’t take the ATTO 3 for a test drive — I only checked it while it was parked.
Also, is there any feature in the ATTO 3 to limit AC charging speed? For example, can you reduce the charging rate from 2kW to 1kW?