A sunshine roof remained standard as did "separately adjustable front seats; heater and air-conditioning unit; Trico windscreen washers" drawing the comment from Autocar "In detail fittings .

[5] The 2,993 cc engine was upgraded to produce 100 bhp (75 kW) by modifying the cylinder head and fitting twin SU carburettors.

However this update found few buyers during a very difficult year for the British Motor Industry and though it remained in the catalogue and continued to be advertised[6] it was in practice replaced by the Grey Lady.

The TC.21/100 or Grey Lady announced 20 October 1953 came with a guarantee of a speed of 100 mph resulting from an improved exhaust system and an engine compression ratio raised from 7:1 to 8:1 to take advantage of the availability of better petrol.

His opening gambit was that this Alvis was now one of the few British cars that did not look American and, he said, there was little concession to the cult of streamlining beyond the two air scoops in the bonnet.

Leather upholstery, pile carpets and walnut facings for the dashboard and lower parts of the window frames completed the traditional picture.