Table: racing_results_3
Columns: year
team
co_drivers
class
laps
pos
class_pos

Question: What were the co-drivers in 2008?
SQL: SELECT "co_drivers" FROM racing_results_3 WHERE "year" = 2008

Question: What is the class of 2009?
SQL: SELECT "class" FROM racing_results_3 WHERE "year" = 2009

Question: Who were the co-drivers with more than 310 laps and team aston martin racing bms?
SQL: SELECT "co_drivers" FROM racing_results_3 WHERE "laps" > 310 AND "team" = 'aston martin racing bms'