[maffydub]

Maybe I misread the article, but I don't think the EFF are actually calling for car manufacturers to _open_source_ their firmware. Instead, I think they're arguing for a DMCA exemption on reverse-engineering the firmware.

At the moment, (allegedly) it's illegal under the DMCA to reverse-engineer car firmware. This obviously stops the research that might have highlighted this. The EFF are suggesting that the DMCA should not apply here, so researchers would be free to work from the compiled firmware (not the source code) to look for issues.