Table: btcc_2009
Columns: team
car_spec
drivers
class
rounds

Question: What rounds did RML Racing Silverline and James Nash compete?
SQL: SELECT "rounds" FROM btcc_2009 WHERE "team" = 'rml racing silverline' AND "drivers" = 'james nash'

Question: What class is Rob Collard in?
SQL: SELECT "class" FROM btcc_2009 WHERE "drivers" = 'rob collard'

Question: What is the car specs for team Airwaves BMW's driver Rob Collard?
SQL: SELECT "car_spec" FROM btcc_2009 WHERE "team" = 'airwaves bmw' AND "drivers" = 'rob collard'