Plot hole: Since they took down the telephone network, it would have been impossible for Justin Long to even be speaking to the emergency response woman for the car, much less send a signal to start the car up.
Live Free or Die Hard (2007)
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Directed by: Len Wiseman
Starring: Bruce Willis, Justin Long, Timothy Olyphant, Mary Elizabeth Winstead, Maggie Q
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Suggested correction: Is it possible this is a satellite phone call akin to Onstar?
No, the BMW system requires a cell signal to work, which was taken down earlier in the movie.
Matt Farrell: You just killed a helicopter with a car!
John McClane: I was out of bullets.
Trivia: Mentioned in the DVD commentary, is that the Tunnel (used to trap McClane and Farrel with traffic from both directions in DC) was an open tunnel and they had to shoot at night because they could not afford to cover it with their production budget. This is obvious from most of the shots pointed to the room where you can see a "break into night" opening. (00:42:55)
Question: Is the "Fire Sale" procedure used in this movie a real-world idea or just a movie creation? Could it ever happen?
Answer: It is strictly hypothetical and most likely couldn't happen without having many, many insiders and the best hackers in the world, but even then, who knows if that could be probable in a "Post 9/11" climate.