I think that after you have driven the 300D for awhile you will prefer it to the SD. The W123 I feel is much more nimble and quick than the W126. The W126 seems like it has too much body and weight to get it going and the W123 can whip in and out of traffic.

Enjoy it. I'm jealous!

__________________
Frank
84 500SEL EURO 101K ( JUST LIKE MY 1ST WIFE. GLAD TO GET RID OF HER! )
85 300D 310K (sold)
90 350SDL 184K sold
83 300D 118K (sold)
88 300E 153k (sold)
93 400E 105K (sold)