Jetmugg,

A 300TDT is a turbdiesel wagon. The 300DT is the turbodiesel sedan. The "T" tacked onto the end stands for Turbo. Mercedes-Benz uses this nomenclature when referring to the different models.

-Steve

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1987 300TDT smoke silver w/ burgundy leather interior
2000 VW Passat wagon indigo blue w/ beige leather interior
1985 Mustang SVO
1970 Chevrolet K10 fleetside, shortbed