The automotive industry is currently searching for a pleasant, safe and unique electric vehicle signature sound. The presented work investigates the attributes of electric vehicle signature sound and the associated consumer satisfaction. The sound signatures of six electric vehicles, one hybrid electric vehicle and several enhanced stimuli were benchmarked. Results showed that Sharpness is fundamental to governing the electric vehicle sound experience. Lastly, a consumer satisfaction model was proposed through 

multiple linear regression and the 95th percentile Sharpness value. The model yielded promising results and is proposed as a means of gauging consumer satisfaction for electric vehicle sound quality.​