ESC is most effect on todays higher center of gravity vehicles. DOT
-NHTSB tested these systems last year and they did reduce roll over
tendancy. But amount of potential accident reduction was unclear. The
estimate was somewhere between 4 and 50%.
My experience with SUV roll over involves witnessing two accident. In
one case a jeep was in front of me going into a toll booth. He made a
slight quick course correction and the thing just flipped over right in
front of me. !!! He was not doing any thing dangerous, driving too
fast, etc. Yes, I think ESC would have prevented this accident,
THe other one was a older woman driving a ford explorer. She did the
same thing, made a small lane change and the thing flipped over, off the
road and into the ditch.
Yes, I also believe ESC would have prevented this accident.
If I was to buy an SUV, (I could never afford one) I would get ESC.
On the other hand, the older WIDE cars that I drive and the LOW center
of gravity of the DeLorean really don't have this roll over problem and
would not significantly improve with ESC.
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