I think those are two separate issues. Big corporations thrive with complex standards being imposed by governments, because it increases the barrier to competi

I think those are two separate issues. Big corporations thrive with complex standards being imposed by governments, because it increases the barrier to competition. $50m in compliance costs might hurt Toyota a bit, but make the next Tesla unfeasible to get off the ground. Therefore, they'd most likely see it as a positive, even if some government employees got to see their trade secrets and the potential for leaks. On the other hand, there's no upside to aftermarket hacking of your product, and plenty of downside (from the corporate perspective).