Later that year Macklin was the driver of the ill-fated 100S at Le Mans. While braking to avoid Mike Hawthorn's Jaguar his car was struck from behind by Levegh's Mercedes which took off into the crowd killing more than 80 people.
1958 SCCA Championship

Well known American sports car driver Dr. Dick Thompson signed to drive a 100-Six in the 1958 SCCA Championship, which he had won the two previous years in a Corvette. His driving style in Corvettes, with their poor
brakes made it look like he was always on the edge as he slid the car through corners while scrubbing off speed with his tyres. Thompson used the same method in the Healey and came in for some criticism.
Road and Track describing his first race as "the most hair raising drive seen at that popular course for some time"
Vincent Sardi

Probably the only person ever to have `traded up` from a 100S !!!!!!!!....
SCCA 1958
Dick Thompson

Like Enzo Ferrari, Donald Healey was a competitor who built his cars with competition in mind. Healey, who had a pilot's licence before a drivers licence, began competing in 1921. His first 'race car' was a Buick!, an ex-taxi that he used in local trials. In 1929 he drove a Triumph Super Seven in the Monte Carlo Rally and together with Tommy Wisdom won the Mont des Mules trophy for best time on that hillclimb.

1930 he was European Hill Climb champion in a 41/2 litre Invicta, while in 1931 co-driving an S-type version of the same car he won the Monte Carlo Rally. He also finished second in 1932 event.

1948, together with son Geoff he finished 9th in his first Mille Miglia, driving a Healey "Westland Roadster"

The original 100 was designed with club racing in mind, hence its novel folding windshield to improve aerodynamics.

100S derived its name from the Sebring 12 hour race, a prototype S being driven to third place in the 1954 event by Lance Macklin and George Huntoon. Stirling Moss finished ahead of them driving an OSCA.

 was back the following year this time partnering Macklin in the works entry Healey. They finished sixth behind more exotic machinery and Austin-Healeys were 1-2-3 in the production class.

 Race _______________________________________________
Healey, Moss & Macklin at Sebring...
Sebring 1958
Team Prize
1957 Sebring - Streamlined 100-Sixs  on the grid with drivers running in a "Le Mans" start
Donald Healey's reputation as a successful driver in international events helped him when establishing his own car company 1946 his 'Healey Elliot Saloon' with body built by Elliots of Reading was timed at 106.56 mph on the Como-Milan autostrada making it the fastest  British production car of the time

Sebring 1957
2nd in Class

100M . Dr.  George Snively, Sacramento Fair Grounds 1956
1st in Class, 3rd Overall in the Governor's Trophy Race

Photo & information courtesy of the Ron Yates Collection
Unfortunately a 100-Six did not get to run in the most famous race of all, The 24 Hours of Le Mans. In 1961 one did come very close however.TON 792 an ex works Rally Car was entered as a substitute car by the Cambridge Racing Team but  despite getting up as high as first reserve car it was frustratingly not called upon to race.

Moss drove Healeys

Famous New York restauranteur Vincent Sardi was also a keen amateur racer and the picture  shows him in his 100-Six at Lime Rock Park racetrack. Sardi finished his racing career in the 100-Six having previously owned and raced a 100S.

Le Mans
In 1958 the 100-Six returned to Sebring with improved results. A three car team of "local' drivers captured the Manufacturers Team prize. The cars were slightly modified and had all wheel disc brakes which had been homolgated by the production of about 40 cars.with this option.
In fact it was Thompson's first drive in the car as he explained:

 "The car had a four speed transmission with overdrive that effectively gave it six forward speeds. I had never driven the car before the first race and took a few laps to get accustomed to the overdrive system."!!!

Thompson got accustomed to it by winning the
1958 SCCA  Championship in the 100-Six
The 100-Six  went racing on its introduction. The Healey company was anxious for more publicity for spring sales of the new six-cylinder car and in 1957 they entered three modified 100-Sixs for Sebring. The cars had dramatic streamlined bodies and Weber carburetors similar to the 1956 Bonneville endurance car. They ran into engine trouble although one of the  cars limped home to finishd 2nd in class but well down overall.
...16 in Dunlop racing wheels at Sebring  1954

Car# 29
Macklin & Huntoon

TON 792

Reserve car

1961 LeMans

# 61 Clark & Taylor
 Thompson, centre. pictured with Briggs Cunningham, right.
100S at Mallory