It's been rumored for some time that the new 400 HP, V8-powered BMW M3 would likely be available in sedan form. We haven't seen much in the way of proof of such a beast existing, until now.

Three shots of the hi-po four-door surfaced today over at the German Car Scene, which upon first inspection don't lend much to their credibility. That's until you check the rear undercarriage shot that sports the M-specific quad exhaust outlets and vaned rear differential.

It's unclear when and where this M3 sedan will make its debut, as the M3's unveiling is expected later in 2007 and another variant would likely come around at later date.

[Source: German Car Scene]