European and worldwide versions (maybe except U.S. versions) of the 1991-1993 600 SELs HAD a "600 SEL" chromed emblem (or badge) installed over the wood detailing on the passenger side of the dash (just under passenger airbag -if so equipped-) or just above the glove box compartment door.
This badge was very similar to the one installed on the trunk, and to my personal opinion it looked very tacky.
It seems many people also agreed with me, as Mecedes-Benz offered a "FACTORY DELETE" option for this interior 600 SEL badge without extra charge.
I guess some owners who forked the money for a 600 wanted to be sure to constantly remaind its passengers of what car were they riding in.
CL 500, 1998
S 500 L, 1998
E 320 T, 1995