CREATE TABLE table_57427 ("Driver" TEXT, "Constructor" TEXT, "Laps" FLOAT, "Time/Retired" TEXT, "Grid" FLOAT)

What's the average Grid with Laps of 88?
SELECT AVG("Grid") FROM table_57427 WHERE "Laps" = '88'
SELECT AVG("Grid") FROM "table_57427" WHERE "Laps" = '88'