BMW's current generation 6-Series, codenamed E63 in coupe flavor and E64 as a convertible, had some big (if not terribly successful) shoes to fill when it came out as a 2004 model. Meant to be a spiritual successor to BMW's 'sharky' 1980s 6-Series, it took over "big GT" duties after the 8-Series was retired in 1999.
However, instead of offering a V12 in its top-range model, BMW went instead with the F1-inspired 5.0 liter V10 powerhouse to create a new M6 with an SMG III transmission and a carbon fiber roof.
Much like Chris Bangle's 7-Series and 5-Series models, the new 6-Series was a bold move away from the Bavarian firm's stagnant (but undeniably classic) lines and into fresh styling territory.