All I can say (and I have a 13' 640i GC) is that if you want to drive a 5 series which in my area are pretty common place that is certainly your choice. The GC is not the best for handling unless you get the adaptive suspension. Even at that it will depend on your driving skills. The car is the length of a 7 series so again it's a big car. I could have purchased any car in this class and spent less. However, I like the GC look and the 4 doors but maintains the 6 series look front and back. The interior is second to none. That's where I spend most of my time. The price for exclusivity is worth it to me.
Forget your Past but don't let it stop you. Tough times don't last. Tough people do.
1994 E36 Convertible (Inherited from my Loving Father)
2013 640i Gran Coupe
Carbon Black Metallic
Ivory White Nappa
Everything but B&O, Night Vision and Active Cruise Control.