An El Camino?! I used to drive one of those - a '73, with a couple hundred thousand miles on the clock. I suspect the writer means a Chevy Camaro...
.....something like this:
Third-generation Chevrolet Camaro - Wikipedia, the free encyclopedia
.....compared to something like this:
Chevrolet El Camino - Wikipedia, the free encyclopedia
But I would be mighty impressed if someone has a picture of an El Camino chasing a U-2 to prove me wrong!