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The Mercedes-Benz W186 model 300 was a four-door luxury tourer produced by Mercedes-Benz between 1951 and 1957. The company's largest and most prestigious automobile, it was the Maybach of its day, elegant, powerful, exclusive, and expensive. Three versions were produced in succession, known informally as the 300A (or simply 300), 300B, and 300C. An enlarged "300D" variant built on the W189 chassis succeeded it in late 1957.

All but hand-built as the company flagship, the W186 is often identified as an Adenauer after Konrad Adenauer, the first Chancellor of the Federal Republic of Germany, who employed six custom cabriolet, hardtop saloon, and landaulet versions of the W186 and its successor W189 during his 1949-1963 tenure. Among the custom features in these "parade cars" were writing desks, sirens, curtains, dividing partitions, sunroofs, and half-roof "landaulet" configurations.

The four door 300 (W186) was introduced at the Frankfurt Motor Show in April 1951 and entered series production in November 1951. It had no "A" designation, which was informally added, along with the "B" and "C", by later enthusiasts seeking to distinguish the three W186 generations.

Available as both a saloon and cabriolet, it featured graceful modernist bodywork atop Mercedes' proven X-frame chassis. An all-new 3.0 L (2996 cc/182 in³) overhead cam, aluminium head M186 straight-6 was coupled to a 4-speed all-synchromesh manual gearbox. Twin downdraft Solex carburettors and an innovative diagonal head-to-block joint that allowed for oversized intake and exhaust valves produced 115 PS (85 kW; 113 hp) at a 6.4:1 compression ratio.

Designed to give reliable service under prolonged hard use, the engine featured deep water jackets, thermostatically controlled oil cooling, copper-lead bearings and a hardened crankshaft. With no natural cruising speed, the car could sustain anything up to its maximum speed all day, road conditions permitting of course.

The Vehicle

We are delighted to have been charged with finding a new owner for this delightful 1954 Mercedes-Benz 300B. Of huge appeal, thanks to its rarity and right-hand drive configuration, the car has formed part of our seller’s extensive collection of classic cars for over fifteen years.

The first owner was a Mr CH Burton of Dunmow in Essex and in amongst the paperwork is an original service book with stamps showing work carried out during the first four years of the car’s life.

A major body renovation in 1988 was carried out and looking at the car’s current condition, it has clearly been pampered ever since. It certainly has been since our knowledgeable seller acquired it.

When not in use, the 300B has been garaged. Not only that, the unit was always heated and dehumidified, essential for preserving lovely old cars.

Furthermore, our seller has had in his employ, a trained classic car mechanic who has maintained the car and all the other beauties with which it shared the garage.

The collection is now being slimmed down which presents the opportunity for one lucky person to take on the ownership of this magnificent Mercedes. It could be you!

On the Outside

We can tell you that the 300B’s owner in 1988 spent the princely sum of £4,427.50 restoring the exterior to its former glory. That was a lot of money back then, but looking at the condition of the gleaming black paintwork, it was money well spent in our opinion.

There’s a lustre to the paint finish that is quite impressive and signs of flaws are few and far between.

The extensive chromework appears to have been well cared for, but there are some areas where some replating may be required. Depends how picky you are, as we would be content to leave well alone.

White wall Dunlop tyres and black and chrome hubcaps complete the look. The rubber looks to be older so we would be inclined to budget for a new set of tyres if the car is to be pressed back into regular service.

On the Inside

Sumptuous leather upholstery will doubtless impress and we suspect it is all original. The squidgy front seats are nicely patinated, and need nothing more we suspect than regularly feeding with a proprietary hide food, to keep them supple.

The rear seats show less signs of use and are in lovely condition. There’s room aplenty for three to spread out and relax.

The level of finish is indicative of the 300B’s status as a luxury car, ably demonstrated by the wooden dash and delightful chrome switches. It would have impressed in its day and if we are honest, that still holds true.

The trained eye will spot a little wear and tear here and there, but let’s not forget this is a car that will be 70 years old the year after next. It has stood the test of time rather well.

Instrumentation is comprehensive, with pretty gauges sitting below the speedometer, itself in pole position.

There is an overall air of quality in the 300B’s interior that we suspect manufacturers back in the day would have struggled to match. Perhaps a Rolls-Royce might have been a worthy adversary.


The Mercedes has had little use in our seller’s hands, but it has been properly maintained. Our seller has at his disposal his own fulltime classic specialist mechanic.

We gather the car is in good running order and our seller welcomes any inspection and will happily demonstrate the car’s abilities.

The mileage displayed on the odometer is just under 67,000 which we understand to be genuine. This elegant Mercedes has led a gentle life, and it shows.

History Highlights

In amongst the paperwork is the aforementioned service book with details of maintenance carried out in the first four years of the 300B’s life.

There is also the estimate from St. Johns Motors in Yarmouth dated 8th July 1988 detailing the extensive bodywork restoration to be carried out.

No recent invoices as the car has been maintained by our seller’s mechanic.

What We Think

To find another Mercedes-Benz 300B for sale in the UK would be a tall order. To find one with a low recorded mileage and in right-hand drive configuration, nigh on impossible.

Not only that, but this car is also a real head-turner and yet eminently useable, be that for taking to classic car shows or for weekend breaks away. Room for four to travel in comfort and a generous sized boot, so no skimping on the luggage taken either.

All this classic Mercedes magnificence does come at a price. We fully expect to achieve a sale price of between 32,000 and 42,000 Euros.

Viewing is always encouraged, and this particular car is located with the vendor in Waterford, Ireland. To arrange an appointment please use the Contact Seller button at the top of the listing. Feel free to ask any questions or make observations in the comments section below, or try our ‘Frequently Asked Questions’.

Bidders MUST ensure they are aware of the registration situation of a car in auction, and whether it will be possible to export/register a vehicle in their country BEFORE they bid.

All vehicles MUST BE COLLECTED WITHIN 7-DAYS of the auction end. Storage fees of £180 + VAT apply (per week) thereafter without exception.

If needed, Footman James classic car insurance and Classic Concierge offer storage can offer you options, plus we have a list of contacts who can help with transport and shipping both domestic and international.  

BORING, but IMPORTANT: Please note that whilst we at The Market always aim to offer the most descriptive and transparent auction listings available, we cannot claim they are perfect analyses of any of the vehicles for sale. We offer far greater opportunity for bidders to view, or arrange inspections for each vehicle thoroughly prior to bidding than traditional auctions, and we always encourage bidders to take advantage of this. We do take a good look at those vehicles which are delivered to our premises for sale, but this only results in our unbiased personal observations, not those of a qualified inspector or other professional, or the result of a long test drive.

Also, localised paint repairs are common with collectable and classic cars and if they have been professionally carried out then they may be impossible to detect, even if we see the car in person. So, unless we state otherwise, please assume that any vehicle could have had remedial bodywork at some point in its life.

Additionally, please note that most of the videos on our site have been recorded using basic cameras which often result in 'average' sound quality; in particular, engines and exhausts notes can sound a little different to how they are in reality.

Please note that this is sold as seen (Caveat Emptor) and that, as is normal for used goods bought at auction, a return policy does not apply. See our FAQs for more info, and feel free to inspect any vehicle as much as you wish.

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  • Location: Waterford, Ireland
  • Seller Type: Private
  • Odometer Reading: 66959
  • Chassis Number: 8601145006
  • Gearbox: Manual
  • Steering position: Right-hand drive
  • Colour: Black
  • Interior: Brown
  • Estimated Price: €32,000 - €42,000

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