Horse racing didn’t go away and there are more people who race horses professionally than who race cars.

There are many more truck drivers than buggy drivers

there is a lot more buggy code than truck code

Truckers code better than bugs

Buggy drivers are adapted to racing conditions better than truck ones.

"Professional riders number roughly three to six thousand worldwide, while professional drivers number roughly twenty to forty thousand across major sanctioned series."

Horses also run faster than pictures of cars

We‘ll wait and see.

Car manufacturers made profit

Some will wait and see, yes.