Mac M 
2005 BMW 5 Series Sedan 545i 4dr Sedan (4.4L 8cyl 6M)
Growing on me
 The dominant item of this car is the V-8 engine.  It is nothing but superlatives: extremely powerful, very fuel efficient, wonderful sounding, impossible to operate smoothly in stop and go traffic, incredibly complicated (I hope valvetronic is reliable).    The car itself is very modern.  Most of it is made of aluminum.  The interior (standard seats) is comfortable, though storage space is limited.  Brakes, transmission, electronics such as Logic 7 radio and nav are first rate.  The latter, of course, is already outdated by today's hard drive systems, but the basic car still remains leading edge.   I cannot overemphasize how good the engine is.  Don't even consider the 6 cylinder.