Armchair Quarterbacking
This video emphasizes the need for extreme vigilance and defensive driving in hot spots like S. Africa where carjackings are common.
Don't let yourself get boxed in on the middle lanes, and don't follow too close. Off road vehicles are useful for light curb jumping if necessary.
Reviewing the video, the victim lost the fight before it began by driving too close. His reaction time/window was less than a second, and 1-2 seconds at best.
At :12, with the car slowing and braking on the on-ramp, the victim should have been keen enough to zip around them.
The brake lights are activated at :12-13, and two doors on the left side immediately open. This could be a warning and the only 1/2 second window to escape. It's in this 1/2 second the victim could floor the accelerator to merge and speed by, allowing for an option to take out the two passenger gunmen if/when the emerge at that exact moment. We have the benefit of examining the situation the victim did not in that fraction of a second.
At :14, 3 men are in full view with handguns. Here the victim still has a chance to escape, by aiming the car directly at the left rear of the forward car, and clipping it to jar the entire vehicle and throw all of the robbers off balance and make the two on the left dive for cover. Hopefully the victim can clip and spin the car just enough to throw all of them off, while managing to keep his car from crashing while he merges at full speed. Hopefully the other drivers will allow his merger.
At :15, the flight opportunities have all-but-vanished. He can still attempt the above maneuver, but will take fire from someone. He can easily take out the guy on the hood, and force the guy on the left to dodge, but all three will get high-probability shots off assuming their guns are loaded and they are trained.
By :16, any defensive moves will lead to his immediate death by being shot repeatedly at point blank range by multiple assailants.
Tactical and situational awareness, aggressive driving skills, and immediate access to a gun (all but useless in this instance as he's in no position for a sustained firefight because he's a fish in a barrel) are vital to survive in ever-growing parts of the world.
I've taken a very good 5 day offensive/defensive driving and shooting school located in Florida called Gryphon Group Mobile Force Protection. They routinely train many DoD, 3 letter and 4 letter agencies, and private contractors. I learned there that a car can take a lot of abuse and keep running as long as it has a working engine, transmission and wheels. Light ramming at under 15mph (of a person or clipping another car) will do minor cosmetic damage and not interfere with the car's operation. Even if struck merging, you'd be hit from the rear or side, and as long as the victim can maintain control the car would be fully operational for at least distances that would put him in safety.
I fear we here in the US will see a rise of these, along with IEDs and terrorist tactics in the future for a variety of reasons irrelevant to this conversation.