Aston Martin DB4 GT

The DB4 GT used disc brakes on all four wheels, matching its competition-focused brief.

The DB4 GT engine used three carburettors and was rated by Aston Martin at about 302 bhp.

The DB4 GT’s competition-oriented 3.7-litre straight-six used a twin-plug cylinder head with two spark plugs per cylinder.

The DB4 GT’s lightweight Superleggera body incorporated magnesium panels to reduce mass.

Weight-saving measures made the DB4 GT about 185 lb, or 85 kg, lighter than the standard DB4.

Compared with the standard DB4, the DB4 GT’s wheelbase was shortened by about five inches to improve agility.

The DB4 GT was among the rarest factory DB4 derivatives; Aston Martin records a total of 94 GT cars built.

Aston Martin officially introduced the DB4 GT at the London Motor Show in October 1959.

During DP199/1’s winning debut, Stirling Moss also set a Silverstone lap record in the class.

Prototype DP199/1 won the GT race at Silverstone in May 1959, before the production DB4 GT was officially unveiled.