12 AUGUST 2011agmetalminer.com
BMW Shuns Steel, Shows Preference For Carbon Fiber and Aluminum
Edited by : AL CIRCLE
1 min read
BMW has revealed details of just one of the projects they have been spending all those millions of euros of profit on recently. BMW has released details of two concept cars which they hope will be sufficiently different from all the other EV and hybrid offerings out there to generate volume sales.
Both vehicles, while platforming many new ideas that have been gestating at BMW, have some notable design similarities. In particular, BMW states that the weight-saving by building the cars from carbon fiber on top of an aluminum chassis allows them to use significantly smaller and lighter (and therefore cheaper) lithium ion battery packs. We have to take them at face value here; it doesn’t sound intuitively obvious that the saving on a lighter battery pack is greater than the cost of carbon fiber + aluminum (minus what the body would have been using steel).
Both vehicles, while platforming many new ideas that have been gestating at BMW, have some notable design similarities. In particular, BMW states that the weight-saving by building the cars from carbon fiber on top of an aluminum chassis allows them to use significantly smaller and lighter (and therefore cheaper) lithium ion battery packs. We have to take them at face value here; it doesn’t sound intuitively obvious that the saving on a lighter battery pack is greater than the cost of carbon fiber + aluminum (minus what the body would have been using steel).
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