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BMW EfficientLightweight showcases the ultimate in efficient, dynamic driving. Thanks to the use of especially lightweight and stiff materials − such as carbon in the passenger cell, aluminium in the chassis, high strength steel in the body or ultra modern magnesium alloys in the engine − fuel consumption is reduced, while driving performance and dynamics are improved.

LOW WEIGHT.
HIGH ACCELERATION.


From rear axle to aluminium front apron, from the M light alloy wheels to the
CFRP roof, the BMW M4 Coupé perfectly demonstrates the
diversity of BMW EfficientLightweight.

Combined fuel consumption in l/100 km: 8.8 [8.3]
Combined CO2 emissions in g/km: 204 [194]

High stiffness and safety: the carbon passenger cell.

BMW i is revolutionising automotive engineering and setting new standards in lightweight construction with the first series-produced passenger cells made of carbon. Thanks to its high strength, the material offers passengers the best possible protection in accidents, yet is still light enough to balance out the additional weight of the High Voltage (HV) battery. The result is greater safety combined with a generous and comfortable level of spaciousness, which simultaneously saves weight and further increases dynamics.
The BMW i3 and BMW i8 are the first vehicles in which carbon has been used for large-scale series production. For a long time, the use of carbon was limited because it had to be produced manually. Today, the BMW Group produces the carbon fibres and carbon fibre plates itself, which makes such production possible.
 
 
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