Question: Who built the under grid 6 car with under 49 laps?
SQL: SELECT "Constructor" FROM "2-1123418-2" WHERE "Grid" < 6.0 AND "Laps" < 49.0;

Question: Who built the grid 2 car?
SQL: SELECT "Constructor" FROM "2-1123418-2" WHERE "Grid" = 2.0;

Question: Who built the car that retired due to Suspension before 65 laps?
SQL: SELECT "Constructor" FROM "2-1123418-2" WHERE "Laps" < 65.0 AND "Time/Retired" = 'Suspension';