Racing cars is democratic and egalitarian in a bad way; any skinny fat loser in an expensive and fast car can go fast.
What takes more courage, and substance? Lifting insanely heavy weights instead. Why? Physical feats of strength are much more interesting than just pushing your foot to the pedal, and increase your adrenaline via G forces.
The best way to naturally produce your own adrenaline is hyping yourself up before lifting an insanely heavy weight. 7 plate and beyond or nothing.