With Bimmerheads' attentions turned to the return of BMW's four-door version of the new M3, any bit of new info is like kibble to a starving mutt. (Not that BMW fans are mutts; you get the picture.) Now, digital slices of a new brochure have made their way to BMW forum BMW-Treff. They show a few teasers of the V8-powered four-door to come, perhaps at next year's Geneva auto show. Apparently it's rolling on some new 19-inchers, though it's hard to tell through all that blur effect. [BMW-Treff via World Car Fans]