CS, I was not kidding about taking the car out for a drive. Yous seem nervous about going out on the highway, but I feel that is a red herring.

A seldom used Mercedes is a lot like a seldom used self winding watch. You do it no favor unless it is kept in motion.

It will likely run poorly unless you put some hours on 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)