I love Mercedes and am loyal to the brand, but those familiar know that the S and similar autos in its segment have pretty low residuals. This is due to many things, like the fact that the cutting-edge tech on those cars can be very expensive to replace or maintain as the car ages
Yes Mercedes S class has pretty poor residuals for a number of reasons. Firstly, most are leased so there's a flood of 3 year old S series always hitting the market. Secondly, Mercedes is just not that good at tech. My last BMW lease was 61% residual after 3 years.
well, it's not because of its cutting-edgeness, but because of the insane margins on replacement parts. mercedes parts at least get cheaper after some time (anectodal evidence), bmw parts prices stay ridiculous forever (personal experience).