I don't think they're poorly built. Poorly build cars don't sell. Look at the UK car industry. It's gone (or sold off to the Germans, and soon Indians) because of abysmal quality. Same with some Italian brands that used to be sold in the US, and some US brands too. The market thins out products of poor quality. X5 sales went up last year. I really enjoy my E70 and I belive most on this board do too!

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E70 X5 3.0si Space Grey

E36 Z3 2.5i Roadster, Sterling Gray Metallic