I am pretty sure I once read one for the 420SEL in Car and Driver or Road and Track, so there ARE some of them out there, especially in 3-car comparisons, such as with Jaguars and BMW 7ers.

Once you locate them, you can buy the old magazines off ebay and ebay.co.uk

I got a few that way.

There are not so many for the 420SELbecause it is a mid-line model and not really considered as "sexy" as the flagship 560SEL model.

I could poke around and see if I have anything, I think I might, possibly.

Wasn't the 420SEL reviewed in some C/D article from the point of view of people watching a new one being driven away by some successful stockbroker, as all the envious bystanders watched its trunk star disappear when he drove out of the downtown parking garage?

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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)