136 Austin Healey 100/4M (1955) TYB 92 by Robert Knight Via Flickr: Austin Healey 100/4M (1955-56) Engine 2660cc S4 OHV Production 640 (100Ms) 10030 (all models) Registration Number TYB 92 (Somerset) AUSTIN HEALEY SET www.flickr.com/photos/45676495@N05/sets/72157623759812996... Developed by Donald Healey to be produced in house by Healey at Warwick, and based on the running gear of the Austin A90 Atlantic. Donald Healey produced a one of show car for the 1952 British Motor Show, the design so impressing Austin Managing Director, Leonard Lord that a deal was struck to build the car in quantity at the Austin Longbridge plant, with finishing and trimming completed by Jensen at West Bromwich. The 100/4 shared the same engine and manual transmission as the Austin A90 Atlantic but the transmission was modified to be a three-speed unit with overdrive on second and top. Girling drum brakes are fitted all round. Front suspension is independent using coil springs and at the rear is a rigid axle with semi elliptic leaf springs. The steering is by a cam and lever system. The 100M is a high performance variant of the 100/4 introduced in 1955 with larger carburettors, a cold air box to increase engine air flow, high-lift camshaft and 8.1:1 compression pistons. It produced 110 bhp. The front suspension was stiffened and the bonnet gained louvres, along with a bonnet belt. Approximately 70% of 100Ms were finished with a two-tone paint scheme, this kit could be ordered from BMC, allowing private owners to make their own modifications Diolch am 95,887,718 o olygfeydd anhygoel, mae pob un yn cael ei werthfawrogi'n fawr. Thanks for 95,887,718 amazing views, every one is greatly appreciated. Shot 07.08.2022, at the VSCC Prescott Speed Hill Climb, Prescott, Gloucestershire REF 162-136