Chassis Num: F4/446/S
The Aston Martin Mark II was introduced at the 1934 Olympia Motor Show in two forms - an 8-foot, 7-inch short chassis and a 10-foot long chassis. This is a very original and complete examples of the short chassis. Of the 160 total Mark IIs built, 60 were short chassis. The 1.5-liter, 4-cylinder single overhead cam engine of the Mark II developed 73 bhp.

Chassis number F4/446/S is a genuine and original car which has not been fettled with throughout its lifetime. it is featured in the Schlegelmilch and Lehbrink book and its condition is superb throughout. This 1.5-Litre Short chassis has been in the same ownership from 1982 to 2007. It received a comprehensive, photo documented and detailed restoration within the past ten years and has been used extremely infrequently since, although it has been maintained and stored properly regardless of use. In 2008 it received an engine rebuilt to the best specifications with various upgrades by noted marque specialist Ecurie Bertelli-Andy Bell. At this time, it was serviced from front to rear receiving attention wherever needed regardless of coast and received ignition and charging system upgrades as well as a modified pedal box assembly to modern pedal positioning.
Founded in 1913, Aston Martin was already a respected maker of sporting cars by the time the 15/98 arrived in 1936. The company had a strong competition record, earning an excellent third place finish in the 24 Hours of Le Mans in 1935. Aston Martin didn't just build sports and race cars, though. The maker's street cars were very well-appointed and, while some remained singularly sporty, cars like the Mark II Sports Saloon offered signature Aston Martin style in a larger and more comfortable package.

With the 15/98, Aston Martin sought to further diversify its product line. With open and closed coachwork by several prestigious names, the 15/98 was offered as a fairly large Saloon (sedan) or Tourer (drop-head coupe), and as a Short-Chassis sports car.

The Saloon was the least desirable of the models. Though its styling was well executed, the look was not as racy as prior Aston Martins. The car appeared stately and elegant, not sporting. This may have been less of a problem had the car been supremely refined and civilized. Its mechanicals, however, were not given adequate time for development before being used on the production car, so the Saloon was unexpectedly gruff for what looked like a luxury car. Also, the bodies were heavy. The small engines couldn't cope well enough with the high weight to make the Saloons drive like other Aston Martins. The company saw that the car needed improvement, but as they couldn't easily revise the entire vehicle they instead decided to simply shorten the production run. From an initial projection of 100, the number of 15/98 Saloons built was cut to 50. Despite their rarity, the Saloons now change hands for quite low prices relative to other pre-war Astons. If nothing else, they are sound investments as there will always be a market for such an exclusive automobile.

Based on the same 9'8' chassis of the Saloon, the Tourer was a sizeable two-door convertible with seating for four. At 575 British pounds, it was slightly less expensive than the Saloon. Equipped with more exciting bodies, the Tourers are now more highly sought vehicles. Only 24 were produced.

The most well respected and highly valued of the 15/98 models were not based on the chassis of the Saloon or Tourer but on shortened 8'6' variations of the same design. The Short-Chassis cars came about as something of an accident. After the decision was made to build only half the number of Saloons as originally intended, a new car was needed to maintain production capacity at Aston Martin.

The first Short-Chassis was shown at the 1937 Motor Show at Earls Court. With a body by Abbey Coachworks of Willesden, it was the most pure and attractive model yet of the 15/98 line. With classic 1930's British sports car styling and a price lower than the Saloon, the Short-Chassis 15/98 was a much better proposition than the other members of the series. The mechanicals of the car were shared with the more mundane variants, but this was not a problem. The shortened chassis weighed less, and the simple coachwork was lighter than the bodies of the longer models. The rough engine that seemed so out of place in a luxury sedan was standard fare for a sports car, and its power was more than adequate for such a light car. A top speed in excess of 85mph could be achieved, an impressive number for a car of the era.

Early 15/98 vehicles were bodied by E. Bertelli Ltd. The head of Aston Martin in 1936 was the brother of Enrico Bertelli, the owner of the coachwork company of the same name. An agreement was worked out between the two brothers that lasted until Aston head A.C. Bertelli's resignation in 1937. The Saloons, produced from 1936-1938, and the Tourers, produced from 1936-1939, were bodied primarily by E. Bertelli. The Short-Chassis, though, were produced only after A.C. Bertelli left from 1937-1938. Bodies by Abbott and Abbey were used on these cars instead.

Mechanically, all 15/98 Astons were alike. Power came from a 2-litre four that had first been used at Le Mans in early 1936. The more advanced Le Mans racer engine had dry sump lubrication, but the version used in the 15/98 was of a more conventional wet sump design. The cars had hydraulic brakes and synchromesh transmissions. The 15/98 title was based on the engine's power output. The '15' was the Royal Automobile Club's horsepower rating. Found through an antiquated formula, the first number was not as meaningful as the '98' that followed. That second number stood for the car's brake horsepower rating, a more modern power rating that allows the Aston's actual output to be understood in today's terms.

The 2-litre Aston Martin engine was the source of propulsion for some very important Aston Martin race and street cars alike, and its presence in the 15/98 cars has guaranteed that the Saloon, Tourer and Short-Chassis models will remain coveted Aston Martins. The Saloon and even more so the Tourer have become significant cars, but the Short-Chassis models will always be the most prized. By combining wonderful looks and capable performance in a sporting and distinctly British package, the Short-Chassis followed the same recipe for delicious automotive delights that Aston Martin continues to use when creating new cars.


Cottingham, Tim. 'Pre War Aston Martins.' Web.8 Jul 2009.

Serio, Stephen. '1938 Aston Martin 15/98 Short-Chassis.' Sports Car Market Oct 2006 Web.8 Jul 2009.

By Evan Acuña

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