w108,107 Parts Hoarder
Date registered: Jun 2010
Vehicle: slc5.0cab 280sl5sp 280se4.5 500sl92 GONE:280sl79 4xW114/5 3x450sl72-3 280slc4sp81 280s69 73,81SLCs
Location: Philadelphia Area
Mentioned: 27 Post(s)
Quoted: 1573 Post(s)
I think what you are seeking is 7.5x16 et34 (or thereabout). If you are fine with buying aftermarket, I think these are available at tire rack. You could probably find a cheap set for sale used though too.
Also, there are at least 2-3 folks selling sets of the 15-hole 8x16 et34 "evo1" wheels right now. There are multiple part number for these wheels. So don't necessarily restrict yourself to a single part number search (for either wheel model).
My dream car is a classic sporty five speed (stick+overdrive) convertible that seats five. If, you want 70's-80's Mercedes tuner wheels, let me know.