10mo ago

YSK: it's not just Tesla, 1/3 of cars in built in the last ten years have passenger/rear windows that are almost impossible to break in an emergency.

www.aaa.com /AAA/common/AAR/files/Research-Report-Vehicle-Escape-Tools.pdf

In the past, laminated glass was usually installed in the windshield, with side and rear windows being tempered only.

The difference is that tempered glass is per-stressed so that when it cracks, it shatters into many tiny and dull pieces. Laminated is the same thing, but with layers of plastic sandwiched with layers of tempered glass. Laminated glass will still shatter, but will be held together by the plastic layers.

In an emergency, small improvised, or purpose built tools meant to shatter tempered glass will be useless if the glass is laminated.

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You're not breaking a tempered glass without the designated tool either and almost nobody has that. There's this famous clip of a news anchor demonstrating how "easy" it is to break a car window with a hammer and he needed like 8 attempts.
- My algo shows me nonstop car break ins in the Bay area ( for some reason or another) and they have gloves and it's amazing how quick they shatter.
  
  Because they have special ceramic tools. Windows will always be incredibly easy for thieves to break with no effort, but they're incredibly hard for people without specialized burglary tools to break.
  
  Specialized tools oversells it. A chipped sparkplug will work.
  
  Yeah, they're nothing fancy, but that's their sole purpose. People aren't carrying around spark plugs unless they're car thieves.
  
  I’ve seen videos of them shattering when a coffee mug or spark plug hits them. Sometimes it takes a couple tries.
  
  Ninja rocks, smash up a spark plug and the ceramic will annihilate car windows
  
  I'd just like to point out that the same is true of your house. Your average deadbolt and doorknob can be defeated by a cordless drill in less than 30 seconds and with very little noise. Don't ask me how I know :D
- pretty insane that cars don't just come with the tool already in a special holder at the bottom of the door "pockets"
  like it would cost them dollars to do so, no one will notice if you just bake that into the price of the car and i do believe it's generally considered a good idea to keep your customers alive so they can buy another car.
  
  They’d go the way of the cheap little tire change kit, if the car even has a spare. Nobody would remember where it is, and it’s probably buried under whatever junk is stuffed in the pocket.
  
  It pisses me off to no end that 2 of the 3 cars I've owned have not had a spare, but that shitty flat repair kit. Thankfully, the one time I needed a spare I had one, as the flat repair kit would have been worthless the day I clipped a curb on a turn and completely blew out my tire.
  Fucking cheap asses making life harder for people.....
  
  Yep. The shrinkflation of cars. Cutting out extras like spares to save a buck. Yeah it’s weight that affects economy, but I don’t want to calculate the weight of a 40lb spare on gas consumption vs the cost of the tire or a tow service. FWIW the do make these little collapsible/inflatable spares that can fit in small spaces, but I’d be wary of them with some AWD cars. Can really F up the limited slip allowed in some of the systems.
  
  FWIW the do make these little collapsible/inflatable spares that can fit in small spaces, but I’d be wary of them with some AWD cars.
  That honestly sounds worse than using a donut, and the one car that came with a donut got it replaced with a full-sized spare because fuck donuts.
  
  It’s better than no spare being the point. If it gets you somewhere better instead of being out $$ for a tow and waiting for the tow to show up. YMMV, though.
  
  The one time I had to use a donut, it was plenty to get me to a tire shop. And because I changed the tire myself and was able to hand it to them, they were able to take care of it immediately even though their bays were full
  
  Most consumers have no need for a spare. The vast majority of drivers have cell phones and never drive anywhere more than 15 minutes from a tow truck or other driver's assistance. Most people I know wouldn't use the spare to fix a flat even if they had one.
  It's also not just about the cost of the tire. It takes up space, and decreases fuel efficiency over the entire life of the vehicle.
  
  The hope of all emergency features is that you never use them. I've never been in a collision but I'm also not stripping out air bags to cut weight.
  
  A spare tire is not exactly what I would consider a safety feature. It's more of a convenience feature, and not even that in most circumstances.
  In most situations it's far safer to get roadside assistance. It's not a great idea to be sitting at the side of the road outside the protection of your vehicle and involved in a task that holds much of your attention. A professional with the right tools can change that tire in a fraction of the time, and they will have far more protection from the positioning of their vehicle and it's lights.
  In some cases, for some people, a spare tire could be a safety feature, some of the time. For instance, if you frequently drive back and forth across the US, there are lots of areas where assistance will be far away and potentially even unreachable. Nothing stops people from getting their own spare and throwing it in the trunk of it makes sense for them.
  
  Why would I willingly give up my ability to help myself? Roadside assistance is great, but relying on it being available is foolhardy. If you only ever drive in the city you live and work in, sure I guess. I don't trips of 40+ miles are that unusual though.
  
  I've already explained why many or most people would willingly give up their ability to help themselves. Why you in particular might choose (or not) to do so isn't relevant as to whether it's something that should be designed into and sold with every vehicle on the road. If I have a flat then, depending on the situation, I'm likely to change it out. My mom? Not so much. In fact, most of the people I know would be scared to try it.
  As I clearly said, you are free to buy your own spare. Most people rarely leave metropolitan areas and, when they do, they are usually on main arteries with lots of nearby infrastructure.
  From a risk perspective, it's a whole lot more dangerous to drive without a good first aid kit, blankets, and water. If anything, that's what should come standard and be refreshed as regular maintenance.
  
  It seems that you don't know the lengths auto makers will go to save litteral cents on a model line. Adding dollars is absolutely not something done lightly.
  
  Doesn't cost dollars, literally cents. A tiny hard rock super glued to the key fob should be enough to shatter the tempered glass
  
  Yes, but remember that you're dealing with MBAs who make it their sole purpose to save pennies. Pennies saved on a few million cars equals more than their salary, which means they keep their job. So fuck a few people dying.
- I don't know how common they actually are, but I see car window breaker & seatbelt cutter gizmos being sold all over the place. I know I keep one in my car where I can easily get to it, though my car emergency kit is probably better stocked than most people's, and most first responders also have them in their kit.
  Also an automatic center punch will usually do the trick as well, it's a fairly common tool, though in an emergency it may not be practical to go rooting through your toolbox to find one.
- I have one on my pocket knife that goes with me almost everywhere.

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