I take it back Matt, you're entirely correct - they are smashing the window and then accessing the OBDII port down the right hand side of the steering wheel where they can just about get at it unseen by the ultrasonic movement detectors in the car.The BBC have a long history of getting confused about tech stories, so I would love to know what the real details are! I believe from something I saw a while back that the attacks may be two stage; first use a technique to gain entry to the car (possibly a physical attack on a window for example) then use an OBD-interface to tell the car to unlock and start up.
She left the keys in the car.About stealing cars.
I saw this video about a model s in the states having been stolen.
owner says how wonderful it was to track her car being chased at 100mph and that she has a remote kill function which she didn't bother to use when she saw it parked up.
no mention of how it was taken/compromised in the first place though.