I just got the new cultus and after 50km it starting to give slight creak sound on the right side, seems between the 2 doors, It gives where this is any uneven road.
Also when car get pickup on 1 and 2 gears the sound of engine is like its sucking something.
Take it to dealership as it's under warranty. And take it to a well-reputed dealership who is relatively better in customer service.