Hersham and Walton Motors (HWM) is the world's longest establishedAston Martin business, having acquired the franchise in 1951. As a racing car constructor, HWM competed inFormula One andFormula Two, and insports car racing.

Hersham and Walton Motors was founded in 1938 by John Heath, an excellent race driver and talented engineer. Heath was joined byGeorge Abecassis in 1946. Together, they moved the business into a building based on New Zealand Avenue inWalton on Thames which was previously used byVickers during the war as part of their aircraft construction facility.^[1]

George Abecassis and John Heath went racing together from 1946 and in 1948 they built a streamlined sports racing car on the chassis of a SportsAlta, and thus embarked upon the construction of racing cars and racing sports cars at theWalton-on-Thames works. The 1948 car gave them encouraging results and so new car, this time called an HW-Alta, was constructed and raced in 1949; this car was sufficiently successful to convince the partners to embark upon building a full team of cars for the 1950Formula Two season of British and continental events: these cars were known as HWMs.

They were the first British team to find international success after WW2 which is almost forgotten. The operated with a very limited budget from their little garage in Walton-on-Thames. Over HWM's seven-year life as a racing car manufacturer less than two dozen were built, but some 70 per cent of the entire production survives today.

The HWM leadership had a skill for spotting young talent. There is a remarkable list of drivers that raced for the team includingDuncan Hamilton,Peter Collins,Harry Schell,Lance Macklin andPaul Frère. This list is far from exhaustive but perhaps the most famous name was that ofStirling Moss. Before driving for HWM, Stirling was a privateer racing aCooper. He was offered his first professional drive at HWM and went on to race for the team for nearly two years. His talent helped the team to gain results that were beyond expectation.^{[citation needed]}

The HWM's four-cylinder Alta engine lacked the power of most of its rivals, but its all-independent chassis handled well, and Stirling's budding genius exploited it to the full. He finished third at Reims behindAscari's Ferrari andSimon'sGordini, and, unbelievably, third in the F1 race atBari behind the 159 Alfas ofFarina andFangio. He set fastest lap in the Rome Grand Prix chasing the F2 Ferraris of Ascari andVilloresi, and was leading the Naples Grand Prix when he was pushed off into a tree by a backmarker.Johnny Claes, meanwhile, scored the first post-war win by a British car in a race titled as a Grand Prix when he won the Belgian Grand Prix des Frontières at Chimay, whileLance Macklin was sixth in the German Grand Prix andRudi Fischer was sixth at Berne.^[2]

In between, there were blown engines to rebuild and bent cars to repair, the hard-pressed transporters frequently broke down, one of the racers caught fire the night before a race, and one of the mechanics, plus car and van, got lost in the middle of Italy, without money and unable to speak a word of Italian. But the team made it to the end of the season, and with good enough results to have built a substantial reputation across Europe. Most important of all, once the three cars were sold off after the last race, there was a small profit to show for all that toil.

Of those three 1950 works cars, one has remained in its Alta-engined form. Another was given aJaguar XK120 engine by its new owner Oscar Moore, becoming the first in a long line of Jaguar-powered specialist sports-racers. And the third ended up in Hollywood, starring in a movie with Kirk Douglas, before gaining a Chevrolet V8 engine and going on to a second racing career on the USA's West Coast as the Stovebolt Special. All three now live with enthusiastic owners in England.^{[citation needed]}

From 1950 to 1952, HWM achieved remarkable success in Formula Two for a team that was run on very little money and yet which faced the might of continental marques in every race. By 1953 they were outclassed, but when the international Formula changed in 1954, John Heath constructed a works car to compete inFormula One. Right from the first event, the non-championshipLavant Cup atGoodwood, the new car proved to be off the pace. It retired from theBRDC International Trophy and then came its World Championship debut at theFrench Grand Prix atReims-Gueux. Macklin qualified a whole 23 seconds behindJuan Manuel Fangio and was running last when the engine failed. With that, HWM abandoned their Formula One programme.^[3]

Meanwhile, the first Jaguar-engined HWM sports racing car had appeared in 1953, and this had some success with Abecassis at the wheel. From then on until 1957, the team was involved in sports car racing both in Britain and on the continent, sometimes beating their Jaguar and Aston Martin Works competitors. After John Heath was killed on the 1956Mille Miglia in Italy in an HWM Works car, Abecassis did not wish to continue and the works racing programme continued for just a year.

In 1950George Abecassis had won his class at Le Mans in anAston Martin DB2 with co-driverLance Macklin. This cemented George's relationship with Aston Martin and the following year HWM was awarded the Aston Martin franchise. It remains an Aston Martin dealership to this day. Having been extremely impressed by Lance Macklin's driving performance at Le Mans, George also secured Lance for the HWM team. Lance went on to be one HWM's most loyal drivers.

In 1958, Mike Harting arrived at HWM as a partner to George Abecassis. He had previously been the global sales manager for Aston Martin at their Feltham facility five miles away from the Walton dealership.

One of those contacts was George Abecassis. George had been running the business on his own since the death of John Heath but was keeping an eye out for a suitable partner. As an Aston Martin Works racing driver, George had struck up a relationship with Mike Harting. It became apparent that there was potential to work together. Mike wanted a career that required him to travel less and therefore see more of his family. The HWM business looked like an attractive option so the deal was agreed and they joined forces.

Eventually when George retired, Mike took ownership of the whole of the HWM business and continued at the helm, later joined by his son Andrew, through the rest of his life.

HWM is today owned by Andrew Harting and the Harting family along with Guy Jenner. HWM trades as HWM Aston Martin and HWM Sports Cars and is an Aston Martin and Sports Cars dealership. It is the oldest Aston Martin dealership in the world.^{[citation needed]}

(key) (results inbold indicate pole position; results initalics indicate fastest lap)

Year	Chassis	Engine	Tyres	Driver	1	2	3	4	5	6	7	8	9
1951	HWM 51	Alta 2.0L4	D		SUI	500	BEL	FRA	GBR	GER	ITA	ESP
				George Abecassis	Ret
				Stirling Moss	8
1952	HWM 51 HWM 52	Alta 2.0L4	D		SUI	500	BEL	FRA	GBR	GER	NED	ITA
				George Abecassis	Ret
				Peter Collins	Ret		Ret	6	Ret	DNS		DNQ
				Lance Macklin	Ret		11	9	15		8	DNQ
				Stirling Moss	Ret
				Paul Frère			5			Ret
				Roger Laurent			12
				Yves Giraud-Cabantous				10
				Duncan Hamilton					Ret		7
				Johnny Claes						10
				Dries van der Lof							NC
1953	HWM 53	Alta 2.0L-4	P		ARG	500	NED	BEL	FRA	GBR	GER	SUI	ITA
				Peter Collins			8	Ret	13	Ret
				Lance Macklin			Ret	Ret	Ret	Ret		Ret	Ret
				Paul Frère				10				Ret
				Yves Giraud-Cabantous					14				15
				Duncan Hamilton						Ret
				Jack Fairman						Ret
				Albert Scherrer								NC
				John Fitch									Ret
1954	HWM 53	Alta 2.5L-4	D		ARG	500	BEL	FRA	GBR	GER	SUI	ITA	ESP
				Lance Macklin				Ret
Source[4]

(key) (Results inbold indicate pole position; results initalics indicate fastest lap.)

Year	Entrant	Chassis	Engine	Driver	1	2	3	4	5	6	7	8
1952	Tony Gaze	HWM 51 HWM 52	Alta 2.0L-4		SUI	500	BEL	FRA	GBR	GER	NED	ITA
				Tony Gaze			15		Ret	Ret		DNQ
1955	E. N. Whiteaway	HWM 54	Alta 2.5L-4		ARG	MON	500	BEL	NED	GBR	ITA
				Ted Whiteaway		DNQ

Abecassis, David (2010).A Passion For Speed, the Life and Times of George Abecassis. Paul Skilleter Books.ISBN 978-0-9566857-0-4.

Taylor, Simon (2019).John, George and the HWMs. Evro Publishing.ISBN 978-1-9105053-2-8.

• 1951 Formula One season cars
• 1952 Formula One season cars
• 1953 Formula One season cars
• 1954 Formula One season cars
• 1955 Formula One season cars
• Formula One constructors
• Formula One entrants
• Aston Martin
• British auto racing teams
• British racecar constructors
• 1938 establishments in the United Kingdom

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