Question: What was the maximum speed of the car with 1.556 cc capacity?
SQL: SELECT "Vmax" FROM "2-172255-1" WHERE "Capacity" = '1.556 cc';

Question: What was the maximum speed for straight-4, 1.466 cc Type R 150?
SQL: SELECT "Vmax" FROM "2-172255-1" WHERE "Cylinder" = 'straight-4' AND "Capacity" = '1.466 cc' AND "Type" = 'R 150';

Question: What was the maximum speed for the P4-1 (24/36 PS)?
SQL: SELECT "Vmax" FROM "2-172255-1" WHERE "Type" = 'P4-1 (24/36 PS)';