2011 BMW M3 CRT

"These new models – due to enter volume production in 2013 and equipped with innovative electric and BMW ActiveHybrid drive system technology – will feature a body consisting entirely of CFRP in the passenger cell area. In a new development, the production process introduced for this purpose enables the cuttings left behind in the construction of the body to be reprocessed. The basic material (made up of carbon fiber thread) can now be woven into CFRP mats of any size before being impregnated with synthetic resin and hardened in a similar way to the material used in the body of the BMW i3 and BMW i8. For the BMW M3 CRT this allows the creation of a hood made from two CFRP moldings encasing an aramid honeycomb structure. This construction imbues the hood with the strength of a conventional steel equivalent, but at roughly a quarter of its weight. The weight saving over the aluminum hood of the standard BMW M3 Sedan is around 50 percent.

The material produced through this innovative manufacturing technology is also used for the car’s bucket seats. Here, the CFRP layers are wrapped around a recycled-paper honeycomb, with a carbon layer made using conventional production technology added to visible areas. CFRP is also used to make both the rear spoiler of the BMW M3 CRT and an air-channeling element integrated into its front fascia.” Read more

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    2011 BMW M3 CRT “These new models – due to enter volume production in 2013 and equipped with innovative electric and BMW...
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