I dunno how much of a hoax it may be. I work a lot of software development for a pretty heavy hitting organization, and I will say that software licensing absolutely OWNS us if we need to use a company's product. It is rational to believe that automakers will, one day, copyright the software embedded within their vehicles, and this action may result in a very restrictive ownership of a performance vehicle. That stated, when vehicle software is legally locked down, there may be a way for auto shops to purchase special licensing allowing them access to the vehicle software and the cost of that licensing will be passed to the consumers.
As to what is read on the Interwebs: I've found this to be a decent forum.
As to what is read on the Interwebs: I've found this to be a decent forum.