Great photos, though I also wish that they'd had some caption information.
I was slightly involved with high-end dirt track racing for a while. I'm reminded that many of those early cars were multi-purpose. The cars would run on dirt tracks at 180 mph most of the year. On Memorial Day they were outfitted with different tires and the suspensions were tweaked to run on pavement. The next weekend those cars and drivers were back at the dirt tracks.
These cars look like they've come straight out of some old movie I saw as a kid about an around-the-world race. Very cool and very entitling when you look at how far the designs have come in terms of aerodynamics and just pure horsepower.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.