> Then you allow both to evolve at a reasonable rate (maybe 10 years

Automakers already get 10-15 years or more out of their platforms. The same series of engines will be used across the their lineup for a very long time. Transmissions are shared across car makers, and so on.

That’s not a problem. The request above was for all auto manufacturers to have to fit into a standardized format.

It would be like telling Intel, AMD and Apple that they all had to use the same CPU socket for 5 years and they all had to be interchangeable.

Do you think we’d have MacBook Pros with all day battery life that also have 500MB/s of memory bandwidth if the company was forced to use a standard CPU socket that all manufacturers agreed on? Definitely would not. Some other country without such requirements would be enjoying them, though.

It’s a demand that makes less sense the closer you are to the subject matter.

Despite 36+ years as a programmer at more or less every level of computing, I don't know that much about CPU sockets. However, my impression is that we'd not be particularly limited by a requirement that a given physical CPU socket design (size, pinouts, power supply) was used for 10 years. As a self-builder, and thus periodic (re)purchaser of motherboards and cpus, my sense is that the majority of the changes to CPU socket specs are gratuitous and unnecessary.

I could be wrong.