- Alvis TD 21
Infobox Automobile
name =Alvis TD 21
manufacturer =Alvis Cars
production =1958–1963
1070 producedcite book |last=Robson |first=Graham |title=A-Z British Cars 1945-1980|year=2006 |publisher=Herridge & Sons |location=Devon, UK|id=ISBN 0-9541063-9-3 ]
predecessor =Alvis TC 108G
successor =Alvis TE 21
height =
length = Auto in|188.5|0cite book |last=Culshaw |first= |coauthors=Horrobin |title=Complete Catalogue of British Cars |year=1974 |publisher=Macmillan |location=London |id=ISBN 0-333-16689-2]
wheelbase = Auto in|111.5|0
width = Auto in|66|0
height = Auto in|57|0
body_style = 2 door saloon, Drophead coupé
engine = Alvis 3.0 LStraight-6
transmission = 4 speed manual, automatic
layout =FR layout The Alvis TD21 was a British sporting car made by Alvis cars between 1958 and 1963. It was an updated version of the TC 108G with body construction by
Park Ward who were better able to supply them to the quantity, quality and price required. They were slightly taller and a drophead coupé was added to the range.The 2993 cc engine was again uprated, now producing convert|115|bhp|abbr=on mainly by an improved cylinder head and increasing the compression ration from 8.0:1 to 8.5:1. A new four speed gearbox from the Austin Healey appeared and Borg Warner three speed automatic transmission was offered. Overdrive was available on the manual transmission from late 1960 to 1962. Suspension was similar to the TC 21, independent at the front using coil springs with leaf springs at the rear but the track was increased by Auto in|1|0 to Auto in|55.5|0 and a front anti roll bar added. Wire spoked wheels became an option. From 1959 the all drum brake set up was changed to discs at the front retaining drums at the rear.
A car with manual transmission was tested by the British magazine The Motor in 1960 and had a top speed of convert|103|mph|km/h|abbr=on and could accelerate from 0-convert|60|mph|km/h|abbr=on in 13.5 seconds. A fuel consumption of convert|20.2|mpgimp|L/100 km mpgus was recorded. The test car cost £2827 including taxes. cite journal | authorlink = Unsigned |title = The Alvis 3-litre Saloon| journal =The Motor| volume = | pages = | date = February 3 1960]
eries II
In January 1962 the car was upgraded to the TD 21 Series II with four wheel disc brakes and in October that year a five speed manual ZF gearbox. The previously stand alone fog lamps were built into the front of the car.
References
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