Piston Slap: Cray-Cray Thoughts On Periods of Great Progress

Hagerty Community member TingeOfGinge writes:

Dear Sajeev,

Your Piston Slap column never fails to entertain and educate. Here's one for you: In what timeframe do we think the most important, most durable advances in automotive technology - and subsequently, automotive ability - took place, and what were they?

My proposal: 1953-60. We started with a 6v charging system, manual brakes, and flathead motors. But we moved to the 12v system the industry would use for the next 60+ years, power-assisted brakes, and high-compression, overhead valve ubiquity.

Now, as a millennial, I didn't have the joy of experiencing these technological developments as they happened, but I'm sure some in the Hagerty Community did. And they have plenty of tales to tell about how X technology made their dad/uncle/brother's "New For [insert model year]" vehicle so much better than the one it replaced.

Sajeevanswers:

This is a question with multiple correct answers, and it changes over time. I wouldn't be surprised if all the PhD-level chemists, physicists, engineers, etc. working on battery technology will one day come up with a formulation that makes our current EV frustrations resemble the machinations of people living in the dark ages. And doing so would improve the performance, price, and reusability of said EV battery at a monumental level. But that's a future we have yet to (or may never?) see, so let's discuss what might be the most important historical time periods for advancements in automotive technology.

Your time period (1953-60) is indeed a great one. My favorite time period is the Malaise Era (1973-83, approximately) because of the breadth and depth of improvements to automobiles and the societies that rely on them. We can and should hate this era more than any other, and trust me, I used to be one of the haters.

1975 Chevrolet Monza Towne CoupeChevrolet1975 Chevrolet Monza Towne CoupeChevrolet

Here's a little sugar to help the medicine go down: The Malaise Era ushered safer designs, better fuel economy, cleaner exhaust emissions, and superior luxury/NVH controls. And many of these benefits came from two bits of underlying technology: computers (inside and out of the vehicle) and extensive use of plastics on interior and exterior surfaces.

The photos above show the fruits of our Malaise-y computing efforts: aerodynamic modeling, interior ergonomics, and finite element analysis. I condensed all three computing advancements into a singular vehicle: The late-malaise revolution that was the 1982 Ford Sierra.

This Ford and the luxury-oriented Audi 100 were design and engineering tours de force for the time, lack of emissions controls outside of North America notwithstanding. They'd both get stomped on by a pancake catalyst-equipped, 8.1-liter Cadillac Eldorado in that regard. (The "Eldog" also had Malaise Era plastics, but the less we discuss of that the better.)

Irid Escent, CC BY-SA 2.0 , via Wikimedia Commons

Let's discuss in a little more depth the technology that made the Malaise Era a good (relevant?) time period in automotive history. While plastic panels and pleather interiors could owe a debt of gratitude to a singular creator, reducing Malaise Era computing to one hero is pretty easy: Meet the Cray-1 Supercomputer from 1975. According to computerhistory.org, it was 10 times faster than its competition, had over 60 miles of wiring, and drew 115 kW of power (about 10 households worth of juice). Depending on configuration, these sold for about $7.9 million dollars in 1977 (over $41 million in 2024), with a total of 80 units made.

The ring of benches around the Cray-1 was a nice touch, likely reducing uneasiness and fatigue when the malaise of a polyester-clad engineer's work begins to rest heavy on their soul. But the folks behind Malaise Era automobiles endured, surviving the dark times, making our lives better in the process.

I've had a hard time finding an OEM press release that specifically thanked this electronic game changer for being the genesis of our modern automobile. But press releases of the era do suggest computer aided design was created and shared across multiple departments for faster production with fewer errors. Odds are, their rudimentary modeling came from a Cray supercomputer or three. Which is pretty cray-cray-crazy if you ponder on that notion.

The expertly casted, finite element analyzed, lightweight plastic T-Top holders for the 1978-82 Corvette. (RPO V54)eBay | troyintexas

While the Malaise Era may not be the best answer for TingeOfGinge's question, it is definitely in the top 10. Maybe top 5? What say you, Hagerty Community?

Have a question you'd like answered on Piston Slap? Send your queries to [email protected]-give us as much detail as possible so we can help! Keep in mind this is a weekly column, so if you need an expedited answer, please tell me in your email.

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