Don't search for the 'is'. You have to search for the 135i and then manually pour through the cars to find the 'is's. They are there. You just have to work to find them. I did find a couple gray is's but no silver.
Agree with you on getting exactly what you want. I ordered mine and then when mine was on the boat an exact one like mine showed up in inventory at a dealer on Ohio. Since I already had mine on order and had a grand of deposit down I just waited for my ordered car.