MG 1100 and 1300 ADO16
|1963 to 1974|
|Production||1962–1968 (1100) 124,860 units 1967–1973 (1300) 32,549 units|
|Engine||1.1 L A-Series I4 (1100) 1.3 L A-Series I4 (1300)|
Although most of the cars were manufactured in England, they were also built in Spain by Authi, in Italy by Innocenti and at the company's own plant in Belgium. It was the basis for locally adapted similar cars manufactured in Australia and South Africa. Various versions including Austin, Morris, MG, Wolseley and Riley were assembled in New Zealand from CKD kits from 1963 until the final Austin/Morris versions were replaced by the Allegro in 1975.
The vehicle was launched as the Morris 1100 on 15 August 1962. The range was expanded to include several rebadged versions, including the twin-carburettor MG 1100, the Vanden Plas Princess (from October 1962), the Austin 1100 (August 1963), and finally the Wolseley 1100 (1965) and Riley Kestrel (1965). The Morris badged 1100/1300 gave up its showroom space to the Morris Marina in 1971, but Austin and Vanden Plas versions remained in production in the UK till June 1974.
Design and development
The ADO16 (Amalgamated Drawing Office project number 16) was designed by Alec Issigonis. Following his success with the Mini, Issigonis set out to design a larger and more sophisticated car which incorporated more advanced features and innovations. In common with the Mini, the ADO16 was designed around the BMC A-Series engine, mounted transversely and driving the front wheels. As well as single piston swinging caliper disc brakes at the front, which were not common on mass-produced cars in the early 1960s, the ADO16 featured a Hydrolastic interconnected fluid suspension system designed by Alex Moulton.
The mechanically interconnected Citroen 2CV suspension was assessed in the mid-1950s by Alec Issigonis and Alex Moulton (according to an interview by Moulton with CAR magazine in the late 1990s),and was an inspiration in the design of the Hydrolastic suspension system for the Mini and Austin 1100, to try to keep the benefits of the 2CV system (ride comfort, body levelling, keeping the roadwheel under good control and the tyre in contact with the road), but with added roll stiffness that the 2CV lacked. Pininfarina, the Italian styling studio which had worked with BMC before on the Austin A40 Farina, was commissioned to style the car. ADO16 had comparable interior space to the larger Ford Cortina.
BMC engineer Charles Griffin took over development work from Issigonis at the end of the 1950s while Issignois completed work on the Mini. Griffin ensured the 1100 had high levels of refinement, comfort and presentation. Griffin would later have overall responsibility for the Princess, Metro, Maestro and Montego ranges.
The ADO16 range sold 2.1 million units between 1962 and 1974.
Mark I (1962–1967)
The original Mark I models were distinctive for their use of a Hydrolastic suspension. Marketing material highlighted the spacious cabin when compared to competitor models which in the UK by 1964 included the more conservatively configured Ford Anglia, Vauxhall Viva HA and BMC's own still popular Morris Minor.
The Mark I Austin / Morris 1100 was available, initially, only as a four-door saloon. In March 1966 a three-door station wagon became available, badged as the Morris 1100 Traveller or the Austin 1100 Countryman. Domestic market customers looking for a two-door saloon would have to await the arrival in 1967 of the Mark II version, although the two-door 1100 saloon had by now been introduced to certain oversea markets, including the USA where a 2-door MG 1100 was offered.
An Automotive Products (AP) four-speed automatic transmission was added as an option in November 1965. In order to avoid the serious levels of power loss then typical in small-engined cars with automatic transmission the manufacturers incorporated a new carburettor and a higher compression ratio in the new 1965 automatic transmission cars: indeed a press report of the time found very little power loss in the automatic 1100, though the same report expressed the suspicion that this might in part reflect the unusually high level of power loss resulting from the way in which the installation of the transversely mounted "normal" manual gear box had been engineered.
- 1962–1974: 1098 cc A-Series I4
Mark II (1967–1971)
At the end of May 1967, BMC announced the fitting of a larger 1275 cc engine to the MG, Riley Kestrel, Vanden Plas and Wolseley variants. The new car combined the 1275 cc engine block already familiar to drivers of newer Mini Cooper S and Austin-Healey Sprite models with the 1100 transmission, its gear ratios remaining unchanged for the larger engine, but the final-drive being significantly more highly geared.
The Mark II versions of the Austin and Morris models were announced, with the larger engine making it into these two makes' UK market ranges in October 1967 (as the Austin 1300 and Morris 1300). An 1100 version of the Mark II continued alongside the larger-engined models.
Unusually for cars at this end of the market, domestic market waiting lists of several months accumulated for the 1300-engined cars during the closing months of 1967 and well into 1968.The manufacturers explained that following the devaluation of the British Pound in the Fall / Autumn of 1967 they were working flat out to satisfy export market demand, but impatient British would-be customers could be reassured that export sales of the 1300s were "going very well".MG, Wolseley, Riley and Vanden Plas variants with the 1300 engines were already available on the home market in very limited quantities, and Austin and Morris versions would begin to be "available here in small quantities in March 1968".
On the outside, a slightly wider front grille, extending a little beneath the headlights, and with a fussier detailing, differentiated Austin / Morris Mark IIs from their Mark I predecessors, along with a slightly smoother tail light fitting which also found its way onto the FX4 London taxi of the time. Austin and Morris grilles were again differentiated, the Austin having wavy bars and the Morris straight ones. The 1100 had been introduced with synchromesh on the top three ratios: all synchromesh manual gearboxes were introduced with the 1275 cc models at the end of 1967 and found their way into 1098 cc cars a few months later.
Mark II versions of the MG, Riley, Vanden Plas and Wolseley were introduced in October 1968, at which time Riley abandoned the Kestrel name. The Riley 1300 Mark II was cancelled in July 1969, and was the last Riley.
At the London Motor Show in October 1969 the manufacturers introduced the Austin / Morris 1300 GT, featuring the same 1275 cc twin carburetter engine as that installed in the MG 1300, but with a black full width grill, a black vinyl roof and a thick black metal strip along the side. This was BMC's answer to the Ford Escort GT and its Vauxhall counterpart.Ride height on the Austin / Morris 1300 GT was fractionally lowered through the reduction of the Hydrolastic fluid pressure from 225 to 205 psi.
- 1967–1971: 1098 cc A-Series I4
- 1967–1971: 1275 cc A-Series I4
During 1970, despite being fundamentally little changed since the introduction of the Morris 1100 in 1962, the Austin/Morris 1100/1300 retained its position as Britain's top selling car, with 132,965 vehicles registered as against 123,025 for the Ford Cortina, in that year entering its third incarnation. By the time the two millionth ADO16 was produced, at the end of June 1971, the Morris badged version of the car had been withdrawn in order to create space in the range and in the showrooms for the Morris Marina. 1970 turned out to be the 1100/1300's last year at the top of the UK charts.
The car was sold with various names in different markets.
In Spain it was sold as Morris, Austin and MG, starting production in the Pamplona Authi (Automóviles de Turismo Hispano Ingleses) factory in 1966, and evolving by 1972 into the Austin Victoria.
In Denmark the ADO16 bore the Morris Marina name. The MG models were sold as the MG Sports Sedan there, as it was in North America from 1962, and was available with a two-door bodyshell that would not be available in the UK until 1968. The Vanden Plas Princess was briefly the MG Princess 1100 in North America, while that market also saw an unusual two-door Austin 1100 (with a hybrid of Mark I and Mark II components). In the Netherlands the Austin version was sold as the Austin Glider.