@Larry, exactly. The issue is what data can be exactly had from this interface. So...what sort of things are already available as "mandated" as you say form the OBD-II interface today, and what are not?
I would still bet that there are lawyers at Ford that had to be shouted down or bypassed to get this one out the door. I would be very curious to see a description of the interface and exactly what data can be had from it. It may just be what is already available from the OBD-II interface that is already mandated on vehicles.
It may not be shocking for Ford to see Open XC alterations to its Mustang line, but it is a new and interesting twist to an old tradition. The Mustang represents the whole history of the Ford company, in its most glamorous and fast-paced light. To bring that together with technology is a powerful thing.