Tester Racing was a British specialist restorer and low-volume constructor that focused on recreations and race preparation of 1950s and 1960s sports cars. The firm traced its roots to a family enterprise in Perthshire, Scotland, and James (“Jim”) Tester took over the business in November 1996. By the mid-2010s it operated from Daventry, England, as Tester Racing Ltd, offering classic car restoration, fabrication, chassis and component…