Within the next 15k miles or so I will need new tires, and runflats are already out of the equation. No way I'm spending $1,500-$2,000 for tires.

I've never been one for staggered wheel and tire setups, so I plan to find a pair of matching Style 214 20x11 rear wheels and use them up front (my X5 has style 214s). I also plan to run 295/40 tires all around instead of the OEM 315/35. They are slightly taller (by 2.2%) but will be a bit more comfortable on Oregon's crappy roads (and less "bulgy" looking too).

Running 20x11s up front will basically be like having a 15mm spacer (16mm to be exact) up front, so no harm no foul.

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2007 E70 4.8i