In 1960-62, I drove out along the Great Highway, towards the Zoo. There would always be drag racing cars on weekends. I even did it a couple times, but luckily for me, other times I saw motorcycle officers sitting back off the roadway watching for racers. I decided it wasn't worth it. It was a reasonably save roadway. It was straight, dry, and if you lost control, you would just go off and into the sandy shoulders or ice plant.