Hello all. I recently got my 2006 4.8is set up for the winter. I had been looking for wheel and tire packages for a long time on other websites and the forums here and I finally decided on stuff a few weeks ago. I found OEM 20" 87s for $550 (thanks Craigslist), and for tires, I got Pirelli Scorpoin I&S from TireRack for about $1200. Due to the great deal on the wheels, I stayed with the staggered 20's (looks great), but I undersized the width on the tires a bit: 265/45 front, 295/40 rear.
I have driven them for a few weeks now and I am very impressed. Dry, I have had them up to 110 and they are surprisingly quiet and stable (they are V rated, yay). On snow, I am even more impressed. I was initially worried about snow traction due to the size of the tires, but I was very pleased with how they preformed in the last few snow outings. The street I live on at Lehigh (which is already on the side of a huge hill) has a very steep slope which is never plowed. The tires provide fantastic traction on the snowy/icy hill and are just as good cruising on the highway in unplowed conditions.
Below are some HDR pics of my car with the new set up!

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2006 4.8is LeMans Blue