BMW i3 Carbon Fiber Explored In Teardown Video


BMW i3 Carbon Fiber

BMW i3 Carbon Fiber

The use of carbon fiber in a mass-produced car is perhaps the only notable breakthrough linked to the BMW i3.

It’s through the use of carbon fiber that the i3 becomes one of the lightest cars sold in the U.S. today.

Without carbon fiber, the i3 might not be the U.S.’ most “fuel-efficient” vehicle.

This teardown video explores the i3’s extensive use of carbon fiber.

As an added bonus, you’ll learn how BMW designed the i3 to survive several of today’s various crash tests.


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8 Comments on "BMW i3 Carbon Fiber Explored In Teardown Video"

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Ha! Carbon fiber indeed. Waiting for blowback…someone start the clock….


I thought Tata Motor’s was also big into gluing parts onto their cars(i.e., Tata Nano), instead of using bolts or other mounting hardware…

Most composite structures are put together with adhesives…including fighter jets.

Wow! I am really impressed with BMW’s engineering and innovations that it came up with for the i3. Most impressive is the hook (aka initiator) that breaks off the head of the bolt on the suspension member and pivots the front tire away from the passenger compartment in the small overlap crash test. Also impressive are the metal serrations (teeth) that bite into the frame rail in a small overlap crash.

I didn’t realize that the large diameter lower carbon fiber frame was actually composed of many smaller diameter tubes bundled together. You can see a cut away view of the small diameter tubes in the pic above. Likewise, the frame rail shown @ 2:45 in the video has interior walls that divide the interior of the rail into four square compartments.

Well done BMW!

Sven, that looks a bit more like a Special Honeycomb design, with adjoining Hexagonal shapes all coming together in the lower corners of the car, when viewed in the video. Honeycombs can be tailored for a controlled crush, resistance to crush, etc.

Where’s that idiot BMW i3 hater james? I’m all for tesla, but guys like james who make it their life mission to try and tear down other brands who produce great electric cars should be smacked around a few times

“You couldn’t do this in steel or aluminium.” Do what? It doesn’t look like it is significantly lighter, or performs any better in crash testing. It certainly costs more, and it is certainly more energy-intensive (and therefore CO2 intensive) to produce. Is that what he means – that you couldn’t do this much damage to the environment or to the buyer’s pocketbook with a steel or aluminium car?