Have you worked on any vehicles? You do realize that cars have never had these open standards and that parts interoperability has varied wildly even within the

Have you worked on any vehicles? You do realize that cars have never had these open standards and that parts interoperability has varied wildly even within the same manufacturer? Even if you had the parts, a number of carmakers have made it, and continue to make it difficult to get the official service manual to replace parts. What you're proposing is historically unrealistic and unconventional. > Modern cars don't deliver here. Neither do older ones. After an automaker stops making parts then you're going to have to dig around on eBay or find a local scrapyard. Maybe you'll get lucky and there's a third party continuing to make parts but that's no guarantee. I support right-to-repair, but the auto industry has been historically hostile towards it.