I just got a brandnew HRV VTI-S from Honda Blacktown a couple weeks ago. This car has everything I need. I was very happy with my new car until I noticed a slight clunk/knock sound when I accelerated or took my foot of the accelerator pedal during stop and go driving. This noise was heard easily when I drove at slow speed e.g. in carpark, in traffic jam etc. This really drives me crazy!!! I brought my HRV back to Honda Blacktown and they said “nothing mechanical wrong with the car, the clunk sound is just a part of the car”!!!! Not sure if anyone could hear similar noise with your HRV