Please can you tell me on a SLK230 Year - where is the spare wheel kept

Something weird going on in that car. The spare tire is a "Spare tire Collapsible compact limited-use tire on lightweight wheel, with portable electric air compressor (plugs into lighter socket)." I am assuming because there isn't enough room anywhere to store a full sized inflated spare. That info came from: http://www.mbusa.com/overview/2000/SLK230.do?category=chassis&modelCode=SLK230&preModelCode=SLK55&preClassCode=07_SLK&preAccClassCode=SLK

I am not daft but l know it is a space Saver wheel - but still where is it situated

in the center of the trunk under the cover located with a handle toward the rear. (under the floor of the trunk compartment. I tried to use it and it inflated lopsided. also do not use the bolts that you take out to remove the flat tire on the rear use the 2 bolts in the tool kit as the longer ones will bottom out on the brake disc.