Does anyone remember Mother Earth News' scratch built diesel car from the 70's?

I recall a project Mother Earth News magazine did back in the late 70's. They built a diesel powered "people's car" from scratch, using motorcycle parts, a welded frame and a small diesel engine made for some sort of farm equipment, I think. It looked a lot like a dune buggy, and they'd managed to keep the cost under $1,000 (in 70's dollars). I went back to my county library a few years ago looking for it, only to discover that they'd thrown their entire Mother Earth News collection (and most other related material) in the trash to make room for some romance and fashion magazines (is it just me, or have most public libraries become essentially useless?). As near as I can tell, Mother Earth News has also purged those articles from their database, nor have I found anything else about it online, though I have searched off and on. If anyone remembers it, and knows where I can find the articles or which issues they were in, I'd appreciate it.

Somewhere I have a CD with much old material on it, published by Mother Earth.
Have you challenged why?

Have you seen this
https://archive.org/details/pub_mother-earth-news

This is a later version
https://www.motherearthnews.com/sustainable-living/green-transportation/build-your-own-car-zm0z13amzmar/

John C Daley wrote:This is a later version
https://www.motherearthnews.com/sustainable-living/green-transportation/build-your-own-car-zm0z13amzmar/

Thanks very much for the links. I've seen the Max, the budget for that was $10,000, not the one I was referring to. I downloaded the index just now. I did ask Mother Earth News about it, their only response was that they weren't certain what project I was asking about, but that they no longer had the material! The search continues...