To what extent to you believe that the NVH (noise vehicle harsnhess) of a car induces rattles in a car over time. Of course there are many factors which cause rattles; build quality, materials etc. But if you factored those things out, would you expect two cars, A and B, to have different rattles after say 3 years if A's engine was a more high revving raucous type one opposed to a quieter low-end torque motor, both producing similar power? I'm just wondering whether say Hondas (RSX, S2000) for example are more at risk of incurring rattles because they have significantly higher NVH as opposed to say an Rx8 (smoother engine, certainly smoother still at higher RPM) or a 350Z. I'm using these cars as examples to make a point, I'm not trying to start a war, there are many comparisons. I am simply to generalize. Thoughts?

 

NVH = Noise, Vibration, Harshness... not Noise Vehicle Harshness.

Body stability and auxiliary design (Harness routing, plastics mounting, mounting locations) influences more than the minor amount of vibration transmitted by the engine.