2013 X1 size comparison
I just picked up my Mineral White 2013 X1 xDrive28i. It will replace my X3 xDrive 3.0, which will most likely go to a family member. The inside does not really feel any smaller than the X3, except I can now reach the back seat. The cargo bay is a lot smaller.
I went from an X5 to an X3, and felt the quality of the X3 to be less. I sort of feel like that about the X1 in comparison to the X3: some of the parts seem "chintzier", but that's ok: they will make for a lighter car, right? I didn't really buy this for the luxury factor though. I'm relocating to Hawaii (the BI) and I need a decent low-key car that can take me back and forth to the beach and an occasional trip to Costco.
Anyway, attached is a shot of the new X1 along side my old 2005 X3 for a comparison. The X1 is actually quite beefy.