How many constructors had a grid of 13?
CREATE TABLE table_27396005_2 (constructor VARCHAR, grid VARCHAR)
SELECT COUNT(constructor) FROM table_27396005_2 WHERE grid = 13
### Context: CREATE TABLE table_27396005_2 (constructor VARCHAR, grid VARCHAR) ### Question: How many constructors had a grid of 13? ### Answer: SELECT COUNT(constructor) FROM table_27396005_2 WHERE grid = 13