A2562 Automobile Noise Levels Benchmark Article on Ambient Sound Road noise, engine noise, wind noise, and vibrations are all experienced inside a vehicle.
Some vehicles are noisier than others.
This article describes a method of recording the spectral content of various cars. Charts are presented and 18 figures are included. A2570 Damping Benchmark Article on Amplifier Damping Specs Richard Clark discusses the definition and real-life implications of the damping factor specification. This is an Advanced Topic article and includes equations and physics. This article answers the questions.