CREATE TABLE table_37673 ("Driver" TEXT, "Team" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT, "Points" FLOAT)

What is the lowest grid of pkv racing, which had 13 points and less than 64 laps?
SELECT MIN("Grid") FROM table_37673 WHERE "Team" = 'pkv racing' AND "Points" = '13' AND "Laps" < '64'
SELECT MIN("Grid") FROM "table_37673" WHERE "Laps" < '64' AND "Points" = '13' AND "Team" = 'pkv racing'