Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_51157 ( "Driver" text, "Team" text, "Laps" real, "Time/Retired" text, "Grid" real, "Points" real )

### Question ###
When the grid is under 5 and justin wilson is driving for the team mi-jack conquest racing, what's the highest number of laps driven?

### Accurate SQL ###

SELECT MAX("Laps") FROM table_51157 WHERE "Team" = 'mi-jack conquest racing' AND "Driver" = 'justin wilson' AND "Grid" < '5'