Mercedes-Benz 300 Adenauer 1952
Two years prior to the introduction of the Mercedes-Benz “Ponton” models, the Type 300 “Adenauer” limousines were already being built by Daimler-Benz. They were different in many respects from the “Ponton” models, but to the casual observer, they shared a similar outward appearance. The main structural difference was that the Type 300 had a separate body and frame. These traditionally luxurious and yet technologically advanced super-cars were primarily used by governments, heads of state, royalty and other members of the heavy wallet brigade. Their engineering, luxury, high price and low production rates placed them at the very top of the already exclusive Daimler-Benz passenger vehicle hierarchy during the 1951-1962 period.

Mercedes-Benz first unveiled the W186, 300 series sedan (no letter designation) and cabriolet 4-door model at the 1951 Paris exhibition auto show. It's unique appearance and features, in comparison to previous post war models, were a huge success, gaining instant appeal by State governments, celebrities, and wealthy businessmen. Features included the X frame chassis of prior models, a 6 cylinder overhead valve carburated engine to compensate for 2+1/2 ton weight, central lubrication system of the 170 model, swing axle, and rear load leveler.

Unique options included, several Becker radio models, VHF short-waved telephone, dictation machine, 7 basic MB colors, Webasto and metal sunroof, and a custom-ordered combination of wood trim types, leather or cloth seats, and carpeting. The models used by Dr. Konrad Adenauer had further custom features including window curtains, divider window, magazine/newspaper nets, writing/eating trays, document storage, lighted mirrors, fog lamps, sirens, and flag holders.

Zylinderzahl 6 (Reihe) Vorderradaufhängung 1 Querlenker;
2 Querfedern
Hubraum 2996 (Steuer 2213) ccm Lenkung Schnecke ZF-Roß
Leistung 125 PS bei 4500 U/ min Fußbremse Hydraulisch, Servohilfe, 4 Rader Trommel—260 mm, Bremsflache 1470
Verdichtung 8,55: 1 Handbremse Mechanisch, Hinterräder
Vergaser 1 Doppel-Fallstromvergaser;
Solex 30 JFFK
Schmierung Zentral
Ventile Hangend, obenliegende Nockenwelle;
Antrieb durch Duplex-KetteSeitlich stehend;
Radstand 3150 mm
Kurbelwellenlager 4 Spur vorn/hinten 1382/1412 mm
Kühlung Pumpe, 11 Liter Wasser Gesamtmaße 5190×1860×1620 mm
Schmierung Druckumlauf, 5,5 Liter öl Räder Scheiben
Kraftübertragung Antrieb auf Hinterräder Fahrgestellgewicht 1000 kg
Kupplung Einscheibentrockenkupplung Wagengewicht 1910 kg
Schaltung Schalthebel Wagenmitte Zuläss. Gesamtgewicht 2360 kg
Getriebe 4 Gang Höchstgeschwindigkeit 165 km/h
Synchronisierung I-IV Beschleunigung 0-100 km/h 16 sec
Übersetzungen I. 3,83; II. 2,02; III. 1,44; IV. 1,00 Verbrauch/100 km 16 Liter
Antriebs-Übersetzung 4,70 oder 4,50 Kraftstofftank 72 Liter (im Heck)
Fahrwerk U-Profil-Prebstahl-Niederrahmen Motor Daimler Benz M 186 II, 6 Zylinder/ Reihe