Hello guys, my perodua bezza 1.3 premium having little rough noise and vibration when moving around 40- 60 km/h every time. After that its back to normal.

This is my first time to own a perodua car. When I checked with Perodua during first Checking/Service and he mentioned its expected behavior when changing gear. (But its low rpm during the incident)

Do you guys encountered this or its normal behavior?