I think that's only half true. There are standardized controls but the dash configurations and wiring harnesses are specific to each model and then even for onl

I think that's only half true. There are standardized controls but the dash configurations and wiring harnesses are specific to each model and then even for only a few years. So I'm in agreement with the BOM arguement generally. Also it's a marketing selling point. Consumer wants the shiny new thing.