A.C. 

GB, 1908 to date

(1) Autocars and Accessories Ltd, West Norwood, London S.E. 1908-1911

(2) Autocarriers (1911) Ltd, Thames Ditton, Surrey 1911-1922

(3) A.C. Cars Ltd, Thames Ditton, Surrey 1922 to date

This make succeeded the Weller and was a John Weller design developed from a commercial 3-wheeler, the AutoCarrier (hence the initials) with a single-cylinder rear-mounted moiv engine, 2-speed epicyclic gear and tiller steering. These side-by-side two-seater A.C. Sociables were made up to World War 1 and sold for less than £100, but in 1913 the company brought out a 10hp 4-cylinder light car with a 3-speed gearbox in the rear axle; the engine was a 1.100cc Fivet. A modernized version with electrics and a disc transmission brake appeared with the 1½-litre side valve Anzani engine in 1919, the giving way to A.C.’s own power unit in 1925 – the fours were dropped at the end of 1928. Also at the 1919 London show was Weller’s famous 1.991cc single ohc wet-liner six, an advanced power unit for its day. It did not get into production unitl 1922, but it remained in the catalogue until 1963, by which time output had gone up from around 35bhp to 103bhp. Under the aegis of S.F. Edge, the company’s director from 1921 to 1929, A.C.’s were raced, through their main interest was long-distance record work. A 4-cylinder car took 57 records at Brooklands Track in 1921; J.A. Joyce’s 16-valve ohc 1500cc single-seater covered 100 miles in the hour from a standing start in 1922; and Gillet broke the World’s 24-hour Record at Monthlhéry in 1925 on a 2-litre six. The 6-cylinder car of the Hon. Victore Bruce and W.J. Brunell became the first British entry to win the Monte Carlo Rally in 1926. In 1925 4-cylinder cars sold from £300, the cheapest six being £90 dearer, 4-wheel brakes were an optional extra, being standard on the 2-litre by 1927. All these cars retained the rear-axle gearbox, though the disc transmission brake did not last long.

Financial difficulties supervened in 1929, and virtually no cars were made for a couple of seasons, though the 1930 Magna series boasted hydraulic brakes. Th Hurlock brothers bought the company in 1930, and the 2-litre emerges in 1933 as a sporting machine with mechanical brakes and a conventionally-mounted 4-speed gearbox, in 56bhp and 66bhp versions. These cars were made on a bespoke basis, prices starting at around £435. Pre-selector boxes were available from 1934 and standard 1935 versions had synchromesh, while cars sold in 1936 had engines of 60 and 70bhp with an 80bhp sports engine available in a special short-chassis two-seater model. A 90bhp super-charged engine was listed in 1939.

A.C. resumed car production in 1947 with a saloon in the modern idiom. This had a 74bhp engine, and hydro-mechanical (full hydraulic from 1950) brakes, but retained its semi-elliptical springing up to the end of production in 1957. Some 3-wheeled monocars for invalids were made with 250cc B.S.A. motor cycle engines, and in 1953 came the Petite, a 3-wheeler roll-top convertible with rear-mounted 350cc Villiers power unit; despite a price of under £400, this never really became popular and was dropped in 1958. 1954 saw the advent of the Ace sports two-seater, a tubular-framed machine with all-independent suspension designed by John Tojeiro. With an 85bhp A.C. engine it could top the 199mph mark, and was later made also with 2-litre and 2.2-litre Bristol and 2.6-litre Dagenham Ford engines. Front disc brakes were standardized in 1960. In 1963 this car was developed into the Cobra (inspired by the American Carroll Shelby) with disc brakes all round and a 4.7-litre oversquare American Ford V8 engine developing 330bhp.

A Cobra finished 4th at Le Mans in 1964, but between 1965 and 1968 Shelby American Inc were responsible for the marketing of the 7-litre type, all Cobra production being abandoned in the latter year. From 1966, however, A.C. offered a luxury convertible or hardtop with Frua bodywork and a 7-litre Ford V8 engine, available with a 4-speed manual or an automatic gearbox. This 428 series was continued into 1973 at a price of £7.010. A.C. also made a special single-seater 3-wheeler for invalids with single-gear automatic transmission, wheel or handlebar steering, and fiberglass coupé body, powered by a 500cc 4-stroke twin engine.

Source: Georgano, encyclopedia of motorcars. MCS

The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com

Cadillac

US, 1903 to date

(1) Cadillac Automobile Co, Detroit, Mich., 1903 – 1905

(2) Cadillac Motor Car Co, Detroit, Mich., 1905 to date

The ‘Standard of the World’ started humbly as a single-cylinder car selling for $750. Henry M. Leland, its creator, had been associated with Henry Ford and has also built engines for Oldsmobile. The Model-A Cadillac was markedly similar to the early Fords in having a horizontal underfloor engine, 2-speed planetary transmission and central chain drive via a spur-type differential, but Cadillac’s 1½-litre inlet over exhaust power unit had one cylinder where Ford used two. There was no bonnet on the early Cadillac models. This very successful design remained in production until 1908, later improvements including rack-and-pinion steering, transverse front suspension and a dummy bonnet. The Cadillac marque was introduced to Britain by F.S. Bennett, who in 1908 conducted a ‘standardization test’ at Brooklands. Three single-cylinder Cadillac cars were dismantled and the parts mixed up – they were then reassembled and the vehicles run on the track. The R.A.C. awarded Cadillac the Dewar Trophy for this achievement.

A 30hp 4-cylinder Cadillac car with separate cylinders and copper jackets was announced for 1906 and 75.000 of this type Cadillac were sold before it was discontinued in 1914. The original planetary transmission gave way first to a conventional 3-speed box, and finally in 1914 to a 3-speed box with 2-speed back axle. Cadillac was one of the firms organized into the General Motors group in 1909 by W.C. Durant, and in 1910, when a 4-cylinder Cadillac tourer could be bought for $1600, the company was claiming that tolerance on 112 parts of the car were accurate to one-thousandth of an inch. 1912 saw a most important Cadillac innovation: the standardization of the Delco system of electric lighting and starting on the Cadillac, now of 5½-litres capacity and capable of 60mph. The first left-hand drive Cadillac of 1915 was also the first of the company’s V8s, to become as much a hallmark of the breed as were Buick’s overhead valves. Inspired by the De Dion Bouton of 1910 it had 5.1-litre engine and sold for $2700. 13.000 V8 Cadillac  cars were sold in the first year of production and the model was widely used by the U.S. Army in World War 1. Cylinder heads were detachable from 1917 on, and 1924 Cadillac versions had Duco cellulose finish and front wheel brakes.

In 1927, when 47.000 Cadillac cars were sold, a less expensive companion make, La Salle appeared, and the cars were restyled in 1928. The synchromesh gearbox made its world debut with the 1929 Cadillac models, which also featured chromium plating and safety glass, with a price range from $3.295 to $5.995. 1930 saw the advent of the ohv Cadillac V16 of 7.4-litres, which gave 185bhp and had a wheelbase of 12ft 4in. This sold at an average rate of 500 Cadillac cars a year for eight seasons in the $6.000-$9.000 price backet. It was joined in 1931 by an equally impressive ohv 6-litre V12 Cadillac for sale. Improvements over the next few years included power brakes (1931), ride control (1932), no-draught ventilation (1933), Dubonnet type independent front suspension (1934) and ‘turret-top’ all-steel bodies (for sale in 1935). 1938 Cadillac models had column change as standard, a year ahead of other GM products, while the V12 and V16 were dropped in favour of a side-valve short-stroke Cadillac 16-cylinder model which was made until 1940. Another new model for Cadillac in 1938, the 8-cylinder Cadillac Sixty Special, anticipated GM’s 1940 styling with its absence of running boards and 4-light sedan bodywork. 5.7-litre side-valve V8s in three wheelbase lengths made up the 1941 Cadillac range, on which Hydramatic transmission was optional for the first time.

The post-war era was to see Cadillac outstrip all its competitors in the top-price class and become an international symbol of wealth. Sales climbed from 66.000 cars in 1941 to 103.857 Cadillac cars in 1950, and to a new record of 165.959 Cadillac cars in 1964. Tail fins made their first appearance on Cadillac’s 1948 fastback coupé, and in 1949 Cadillac, along with Oldsmobile, adopted overhead valves and oversquare cylinder dimensions, their new 5.4-litre engine developing 160bhp. Cadillacs were raced at Le Mans in 1950 by Briggs Cunningham and the Cadillac engine was also used in export editions of Britain’s J2. Allard. Power output increased steadily: 190bhp in 1952 (by which time manual transmission was no longer offered), 210bhp in 1953 (when a 12-volt electric system was standardized), and 230bhp in 1954, the year when panoramic wrap-around windscreens and power-assisted steering became standard on the Cadillac for sale.

The expensive Cadillac Eldorado Brougham of 1957 (it cost over $13.000) was the first car to have air suspension (dropped after a few seasons) as standard equipment, while Cadillac, along with Lincoln, started the fashion for four headlamps, that later became universal in the USA. 1966 Cadillac cars featured GM’s perimeter-type chassis frame, a 340bhp 7-litre engine, variable-rate power steering, full air conditioning, electric door locks and seat controls, a time switch for the headlamps and a six-position steering wheel. Prices started at $4.650. In 1967 Cadillac set a new sales record of 213.161 cars, bettered in 1969 with 266.798/ They introduced a fwd car on Oldsmobile Toronado lines, the Fleetwood Cadillac Eldorado with torsion-bar ifs, self-levelling suspension, and front disc brakes, these last being applied to the more expensive Cadillac Fleetwoods with conventional drive, and to all the 1969 Cadillac range. Capacity of the Cadillac V8 engine was increased – to 7.735cc in 1968 and to 8.2 litres in 1970, but otherwise there were no major changes. In 1973 Cadillac were one of the few firms offering a nine-seater limousine: the Cadillac 75 with a wheelbase of 12ft 7½in and an overall length of 20ft 8in.

Source: Georgano, encyclopedia of motorcar; MCS

The information is written with the greatest of care. However, if you have any suggested amendments please contact us at office@prewarcar.com