Table: harold_primat_results
Columns: year
team
co_drivers
class
laps
pos
class_pos

Question: In what year did the team of aston martin racing have a position of 6th?
SQL: SELECT COUNT("year") FROM harold_primat_results WHERE "team" = 'aston martin racing' AND "pos" = '6th'

Question: Which year did the team of pescarolo sport have a Class Position of 7th?
SQL: SELECT MAX("year") FROM harold_primat_results WHERE "team" = 'pescarolo sport' AND "class_pos" = '7th'

Question: Who were the co-drivers of the vehicle that had both a Class position and position of 7th?
SQL: SELECT "co_drivers" FROM harold_primat_results WHERE "class_pos" = '7th' AND "pos" = '7th'