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      07-03-2012, 08:01 AM   #69
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Actually, what you are looking at in terms of "reworked"
is a strengthened aluminium block with a heavily modified cylinder head , The Induction tech is completely all new as will be BMW's latest bi-vanos variable valve timing.
EfficientDynamics plays a huge part in not only lightweight chassis and body panel technology. Engine Stop-Start , on-demand ancillaries operation and Brake Energy regeneration will give the all-new M3 20-25% better efficiency than the current V8.

The First protypes of the BMW M4 Coupe will be seen later this summer.