Similar here, taken to road races by my father from too young to remember, but the indoctrination process started there I believe

Quite intoxicating sound, aren't they.
https://youtu.be/f410HRvyOjw this one is so good too as no music and the 500-3 MV the one I consciously remember and identify as the scource of infatuation

it's that last gear change right at the end of clip that completes it so well.
The Mazda engine is a rotory multi. Each rotor firing 3 times per revolution, and 4 rotor chambers built onto one crank, making effectively 24 cylinder (equivalence of 4 strokes) sound pulse running at about 10,500 rpm which makes it such a unique sound.