Power will come from a new lightweight V8 producing around 400hp and uses the latest dual-VANOS variable valve timing system. New engine building technology and lightweight materials mean the engine should amazingly weigh the same as the outgoing 3.2 liter in-line 6 cylinder from the current E46 M3 but with considerably more power.
The new M3 is slated to arrive in early 2006 with a 2005 Frankfurt debut and the cabriolet will have a Geneva 2006 debut with sales beginning in summer 2006. The SMG transmission will come standard and a CSL version of the coupe with excess of 420hp is being planned as well.
This info comes from GermanCarFans.com, so take it with a grain of salt.
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