CREATE TABLE table_79268 ("Driver" CLOB, "Navigator" CLOB, "Vehicle" CLOB, "Class" CLOB, "Capacity" FLOAT, "Total Time" CLOB, "Margin" CLOB)

What's the lowest capacity when the margin is 03:30?
SELECT MIN("Capacity") FROM table_79268 WHERE "Margin" = '03:30'
SELECT MIN("Capacity") FROM "table_79268" WHERE "Margin" = '03:30'