Table: racing_results_6
Columns: year
number
team
co_driver
position
laps

Question: What is the lowest Year, when Co-Driver is Warren Luff, when Position is 7th, and when Laps is less than 161?
SQL: SELECT MIN("year") FROM racing_results_6 WHERE "co_driver" = 'warren luff' AND "position" = '7th' AND "laps" < 161

Question: What is Position, when Laps is 156?
SQL: SELECT "position" FROM racing_results_6 WHERE "laps" = 156

Question: What is the highest Year, when Laps is greater than 161?
SQL: SELECT MAX("year") FROM racing_results_6 WHERE "laps" > 161