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  Austin 1100 Supremo


The Austin 1100 Supremo. The "up market" standard 1100? Both statements are correct. This conversion was for appealing to those who had purchased a standard Austin 1100 and wanted that little bit more luxury to finish it off.

If you were a mobile phone company, you'd probably describe the Supremo as an "1100 bolt on". Surprisingly the Supremo had very little done to the exterior, apart from the two tone paint job, and gold lines down the side. Under the bonnet, however, you wouldn't get your standard A series power unit - it just wouldn't be right, not with this price tag. You got unit that was tuned by Nerus Engineering. To make the car perform better the combustion chambers were matched, polished and the porting was airflowed. The Compression ration is raised from the standard 8.5 to 9.3 to 1 - the draw back? Super premium fuel had to be used to get the best performance. The single S.U. carburettor was replaced with a special manifold and a pair of 1.2inch S.U. carburettors, while on the exhaust side a three-branch tubular free-flow manifold was used instead of the normal cast iron one.

Under the bonnet. The addition of sound deadening material on the bulkhead can be clearly seen. Note the twin carburettors as well.

Austin 1100 Supremo stretching it's legs on the track! Duo tone paintwork can be seen clearly on this shot.

You didn't just pay for the engine tuning, in fact you got a whole host of extras on the inside of the car as well. The standard dashboard was replaced with a veneered item, wood door cappings were also fitted to cover the metal usually seen on the inside of the door. A centre console was fitted incorporating a rev counter, oil pressure gauge and clock. But wait... there's more, thrown in you got Britax electric window winder boxes mounted on each door panel.

The Supermo also used the thicker rubber backed carpets as supplied in many Mk1 vehicles between 1964 - 1967. Besides better sound deadening, they were harder wearing too!! Further adding to the "Touch of class" you could be assured of a "Silent Ride" because special super de luxe polyether foam was used and sound deadening.

The price tag of 105 sounds quite reasonable when you consider that the cost of the engine conversion would represent a huge proportion of that one would imagine. A similar Downton tuned engine would have cost 92 5s 9d.

It's just a shame that the centre console wasn't incorporated into the dashboard a little better. It looks too bolt on, for my liking.

Sorry it's not very good - This is one of the original pictures that would have been used to advertise the Supremo. Sadly it's a photocopy of a photocopy.

 :: Additional information

Figures in brackets are for the standard Austin 1100, and have been taken from Autocar of 18th October 1963.


Acceleration Times (Mean):


The ratio of the four gears are indicated under each gear.












10 - 30



4.9 (5.4)


20 - 40

11.3 (11.4)

7.5 (7.9)

5.2 (6.2)


30 - 50

11.8 (13.0)

8.4 (9.7)



40 - 60

13.5 (15.0)

9.8 (12.3)



50 - 70

16.1 (21.3)

15.8 (-)






The Austin 1100 Supremo retailed at 715 15s 6d with purchase tax.


The nearest "off the shelf" ADO16 came in the form of the MG 1100, which retailed at 713.


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