I give BMW credit for doing something different because they can, but the products in the end often arent as good as they should be (6-series, early 7-series, etc.). Dont get me wrong, I still love the 3-series and I'm still warming up to the 5-series, but generally speaking, they do it right when they build cars. The Europeans allways seem to be on the forefront of design, esp. when compared to the American designers, and what we are seeing with Bangle may be the new thing. Do I completely like it? No, but I dont completely hate it either. If I was going to pick the best looking cars from Europe as a whole company, that title would go to Alfa Romeo, but the BMW folks wouldnt be too far behind...
The notions about the ways a car should be built are going to greatly depend on where that car is comming from. I think that in Europe we are going to see a shift twards the way BMW does it's designs, a little more unique, yet still purposeful in most situations.
In Japan, it still seems like anything goes. I really do not like the way design is working itself out in the land of the rising sun, it has become too extroverted, too outrageous in some cases. Sure, quirky cars sell well, but most people dont want to be driving a cartoon character down the street. The new Civic is a good example of design gone mad, same with the Camry, the entire Lexus lineup, etc... If they want to capture sales, they need to be building cars that people want to drive, or atleast CAN drive, and maybe more folks like me would be tempted by a Honda or Toyota.
The Americans on the other hand are going to be going two different directions. On the one hand, we are going to see a continuation of the reto-futuristic design themes with classic models like the Camaro, Mustang, Challenger, Charger, 300C, etc. Because of America's obsurdly rich automotive past, there really is a limitless supply of classic designs that could be translated to modern terms for many different models. On the opposite side of the field, I can see many of our designs maintaining their otherwise American looks through a filter of either European design, or Australian design. Tight and restrained looks are great, and they have worked well for cars like the Solstice, Sky, Fivehundred, Fusion, etc.