They are the answer to a question nobody asked.
Mercedes Benz build quality, reliability and durability, and hyper complexity, are problems that are still bad, according to second hand sources I have heard from (The actual Mercedes Benz technicians that actually FIX them at the dealers in Southern California).
They say these new Mercedes cars are junk, garbage and crap and would NEVER, ever, buy one. EVEN TODAY, the brand new ones are pieces of crap, they SPECIFICALLY said.

wow!!!
Who better than the dealer techs who put hands on them daily to fix hem, would know this?
I would think fixing the Volvo wagon would make more sense, based on what I heard, though those FWD ones do have problems, too, sometimes. I love the old 740, 940, and 960 rear wheel drive Volvo wagons a LOT. I almost bought a new 960 back in 1996 but the 560SEC seduced me out of my $40,000 new car budget back then - and here I am today with it.
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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)