Here's the solution - electronic sound enhancer/noise amplifier

Faking It: Engine-Sound Enhancement Explained - http://www.caranddriver.com/features...ined-tech-dept

2017 Ford Fiesta ST with an "electronic sound enhancer"- http://www.roadandtrack.com/new-cars...ord-fiesta-st/

WRC teams will need a DJ to create and develop unique car noise.
If you are a DJ apply for the new job