What year did the Cosworth v8 engine participate in?
CREATE TABLE table_name_37 (year INTEGER, engine VARCHAR)
SELECT AVG(year) FROM table_name_37 WHERE engine = "cosworth v8"
### Context: CREATE TABLE table_name_37 (year INTEGER, engine VARCHAR) ### Question: What year did the Cosworth v8 engine participate in? ### Answer: SELECT AVG(year) FROM table_name_37 WHERE engine = "cosworth v8"