I'm still curious if this can be done without physical access to the car in advance. The last time one of these showed up, it was very understated that all the remote access stuff involved reprogramming an ECU and plugging in a phone you control.

The article doesn't provide any clear information on whether this works purely remotely.

EDIT: Scrap that, seems it does - weird that the article doesn't lead with that more prominently. In which case wow - pinging the network and grabbing GPS coordinates for cars?