Re: Spare tire
Do a Google search for slk 320 spare tire. Pick out any salvage yard (junk yard) thats listed & see if they have a donut spare
available for a M B slk 320. I bought mine years ago. It was from a 2002 totaled car. Spare had never been used & worked
well on trial inflating & deflating. Our factory lug nuts fit perfectly & so does the donut tire both on the front & rear wheels.
No clearance problems anywhere. I bought a little travel trailer spare tire cover for mine in gray & you hardly notice it
when it's stored in my trunk. It does not take up that much room & serves me well for the peace of mind wherever I am.
Not sure if it would clear an SRT suspension setup but it's just right for an N/A. If I remember right it cost $125.00 incl. frt.
from California.