One of Mercedes-Benz's first all-new designs of the post-war era, the 300 debuted at the Frankfurt Auto Show in 1951 and would succeed in re-establishing the Stuttgart firm in the front rank of prestige car manufacturers, marking as it did a return to the marque's tradition of building high-performance luxury automobiles of the finest quality. The 300's cross-braced, oval-tube chassis followed the lines of the 170S and 220, with independent suspension all round and four-wheel drum brakes, but incorporated the added refinements of hypoid bevel final drive, dynamically balanced wheels and remote electrical control of the rear suspension ride height. Initially developing 115bhp, the 3.0-litre, overhead-camshaft, six-cylinder engine - used in fuel-injected form in the 300SL sports car - was boosted in power for the succeeding 300b and 300c models, finally gaining fuel injection in the re-styled 300d of 1957. Other improvements along the way included larger brakes (with servo-assistance from 1954), optional power steering (on the 300d) and the adoption of three-speed automatic transmission as standard on the latter. Custom built by Mercedes-Benz's most experienced craftsmen, the 300 was luxuriously appointed and trimmed with materials of the highest quality. Fast and elegant, it was one of very few contemporary vehicles capable of carrying six passengers in comfort at sustained high speeds. It was the car of choice among West German government officials, and throughout Europe and the USA was widely favoured by businessmen, financiers and politicians. Indeed, 'Adenauer' became the 300 saloon/limousine's unofficial model name, after German Chancellor Konrad Adenauer, its most famous customer. This rare, right-hand drive '300' was first registered in the UK on 1st August 1956 and has been in the same family ownership since 1985. Very original, this imposing car is beautifully finished in white with red leather interior and is described as in generally very good condition. Used sparingly, 'SUF 300' has always been kept garaged by its fastidious owner, a garage proprietor who had the car maintained 'in house', and is sold only because his state of health means that he is no longer able to enjoy it. This highly original and well cared for example of Mercedes-Benz's 1950s flagship model is offered with old-style logbook, current road fund licence, MoT to July 2012 and Swansea V5 document.