Question: Which years were the line of cars that the Ferrari TR were closely related to built?
Sentence (from "Ferrari TR"): These results led to World Sports Car Championship titles in 1958, 1960 and 1961 with only the Aston Martin DBR1 defeating the Testa Rossa at the Nurburgring in 1958 and at Le Mans, the Nurburgring and Tourist Trophy and the World Championship in 1959.
Relevant evidence: No