The GPL wouldn't have relicensed the entire source tree of the car. Arguing it would doesn't make sense -- we know of many cases where similar things have happe

The GPL wouldn't have relicensed the entire source tree of the car. Arguing it would doesn't make sense -- we know of many cases where similar things have happened and nobody released the source of entire products as a result. Derivative works in copyright are a very specific concept, and it's generally agreed that using the CLI interface of a program doesn't constitute a derivative work.