You are really on top of this!
A few spring immediately to mind:
1. Volvo 780 (but avoid the problematic V6, stay with the 4 cyl. turbo.)
Lush, leather interior, rich wood on dash, styled by Bertone:
http://www.volvoadventures.com/780vermant2.jpg
2. Mercedes W124 300CE/E320 coupes.
Finding one with the Sportline package is even better! Neat, nimble, beautiful, reliable
3. Mercedes 500SEC/560SEC
A real GT type cruiser, trunkroom of a sedan (I'm a bit biased, and made that choice)
4. BMW 840ci
(direct competitor to the 560SEC and Jag. XJS, gorgeous cruisers, avoid the 12 cyl. 850ci)
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1991 560 SEC AMG, 199k <---- 300 hp 10:1 ECE euro HV ...
1995 E 420, 170k "The Red Plum" (sold)
2015 BMW 535i xdrive awd
Stage 1 DINAN, 6k, <----364 hp
1967 Mercury Cougar, 49k
2013 Jaguar XF, 20k <----340 hp Supercharged, All Wheel Drive

(sold)