Those targets were far... Most car jackings require someone standing next to the car. I've not see many where they don't already have the gun aimed at the driver and ready to shoot.
They may also be in the car next to you, before they get out and have a gun in your face, or often the passengers. It's a common surprise tactic used by Mexican/Central/South American criminals, I believe. What Crioche said makes sense, and my work there, but usually in the videos I've seen they make you lay on the ground. Again, it can be "What ifed" to death... (At the time I heard of this Mexico had more car jackings a day than the U.S. did in the previous year.)
Honestly, I can't say I've got any solutions for it though. /Armchair commando
"Today is victory over yourself of yesterday; tomorrow is your victory over lesser men." - Miyamoto Musashi
[Insert random irrelevant religious quote here]