I am checking how hard I can rev with my car. First I push pedal on 25%, than 50 %, 75%, and on the end maximum till car start shaking from hard revving. I feel my feet are tired and I need massage, I ask my passenger for foot massage after. For a moment I take of my shoes and wiggle with my toes, feel happy with no shoes, I tried rev with bare foot but it saunds different than with shoes. I put back shoes having promise to get massage later when I rev hard...