Renault Clio - Droning and rattling noise - New owner
I have a new Renault Clio Hybrid. I have concerns over a couple of sounds:

1. Droning noise around 30 mph. Not at lower speed though so can’t be pedestrian warning of hybrids.
2. Some rattling noise from rear left hand from where the traction battery is placed in the trunk. I have checked it’s not the seat belt buckles rubbing on plastic or any item stored in the trunk. More pronounced on cold morning.
Renault Clio - Droning and rattling noise - Xileno

You will only know by comparing to another model. Take it back to the dealer if you are concerned, that's what the warranty is for.