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Model 3 with 3 ft long crack on the windshield


Oct 15, 2020
How fast were you going? The rock would be doing similar speed coming at you
I used to fit windshields many years ago, speed, angle, hardness/jaggedness of rock all play a part in what damage is caused
There’s also luck which seems to be the biggest factor
Keep good distance from other cars in your lane and drive with your fingers crossed, sorry for your damage I know it sucks but could worse, it could have left damage on the hood instead
It was about 55 to 60 mph and it was on the freeway which was very clear, probably I could see one or just two cars in front of me, that were close enough to kick a debris towards me.


Jan 24, 2017
I think we all agree aerodynamics are a thing. That’s not the argument though right ?
The model 3 is very aerodynamic, and that impacts its range.

What I’m saying is; If you have a rock flying towards the car at speed, and its trajectory is at your front glass, it’s unlikely the better aerodynamics of the model 3 allow an object like a rock to pass through easier than a car with poorer aerodynamics, resulting in more rock impacts. ..
In my many years of driving other cars of all types, I’ve never seen a rock deflected away from the windshield from wind.
I just can’t believe something as heavy as a rock would be influenced enough by aerodynamics of any normal car to change its trajectory outcome. Maybe the physics masters on this forum can chime in with their thoughts. My BMW has rock chips in it, and I’ve seen June bugs hit my BMW window many times. If that cars poorer aerodynamics can’t deflect a June bug, how could it influence a rock ?

it not really a matter of what you believe or what I believe.
I was merely relating my experience w/number of dings
from FOD onto windshield v front bumper, and in this car
I have abrasion on windshield while front bumper is minimal...

also other highly aero autos in my past didn’t experience the
same frequency of windshield hits, same roads, same speeds.

as the frequency of these incidents increased, I know there is
something more to the observances, aero can and does have
effect of where rocks, pebbles FOD impact a moving object.

which moves the frequency to why tesla 3 glass isn’t resilient
enough to withstand damage as previous vehicles in my past?

so, chalk it off to chance, phase of the moon, your choice.
I know something is different from my experience, again YMMV?
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