Aston Martin DB2 Mk III Convertible 1957 1:43 scale Oxford Diecast Diecast Model Car This Aston Martin DB2 Mk III Convertible (1957) diecast model car is british racing green & features working wheels. It is made by Oxford Diecast & is 1:43 scale (approx. 9cm / 3.5in long). This model also comes in its own display case to keep it in perfect dust free condition.