Table: race_results_2007_aj_2
Columns: fin_pos
car_no
driver
team
laps
time_retired
grid
laps_led
points

Question: Who is the driver with a time/retired of +5.2684?
SQL: SELECT "driver" FROM race_results_2007_aj_2 WHERE "time_retired" = '+5.2684'

Question: What is the grid of driver tomas scheckter from vision racing team?
SQL: SELECT "grid" FROM race_results_2007_aj_2 WHERE "team" = 'vision racing' AND "driver" = 'tomas scheckter'

Question: What is the grid of car no. 3?
SQL: SELECT "grid" FROM race_results_2007_aj_2 WHERE "car_no" = '3'

Question: What is the grid with a +6.8359 time/retired?
SQL: SELECT "grid" FROM race_results_2007_aj_2 WHERE "time_retired" = '+6.8359'