Thanks for all of the photos.
I will most likely end up using the SL 2pc set on my car. There are two aspects of the wheels that bother me when installed on an 036.
1 - From some angles (mostly viewed straight-on) they tend to look a bit too modern and open for this '80s look car. I think the W210 E55 18" Monoblock looks much older, even though they were both released around the same time.
2 - The rear wheel (18x10" ET25) is, IMO, way too aggressive looking on an 036. Obviously this is highly personal. Sure it fits, but I think it pokes out waaaaay too much in the rear. Consider that as-delivered the 036 had the exact same width and offset of wheels at all four corners. With the SL combo the outer edge of the rear wheel sits out 19mm more than the front wheel! This isn't a good, balanced look....again IMO

To cure this I have gone to great trouble and expense having a local wheel specialist customize my rear SL wheels to make them 18x10" ET35. For reference the 18" W210 E55 Monoblock that so many 036 owners use is an 18x9" ET35 so my rear wheels will still sit out 12mm more that these do. Plenty aggressive for such a classy old car.
Keep posting up great looking cars

I would love to see a photo showing the 18" E55 wheels and 18" SP 2pc wheels together! Time for an 036 meet?