Actually the s class is longer but sleeker and does not weigh much more than a 300dt. It is geared higher so will probably return a bit better economy on the highway.

The s class if the earlier from 81 to 85 is somewhat more electrically equipped so there is a bit more to maintain.

Both are nice high quality vehicles.

Good luck.

Tom W

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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.[SIGPIC]

..I also have a 427 Cobra replica with an aluminum chassis.