CREATE TABLE table_23528 ("Pos" FLOAT, "Driver" CLOB, "Vehicle" CLOB, "Top 13 Time" CLOB, "Shoot-Out Time" CLOB, "Best Time of Day" CLOB)

how many drivers driving toyota corolla
SELECT COUNT("Driver") FROM table_23528 WHERE "Vehicle" = 'Toyota Corolla'
SELECT COUNT("Driver") FROM "table_23528" WHERE "Vehicle" = 'Toyota Corolla'