CREATE TABLE table_38021 ("Driver" TEXT, "Constructor" TEXT, "Laps" TEXT, "Time/Retired" TEXT, "Grid" TEXT)

What is the name of the company that constructed the vehicle for Timo Glock?
SELECT "Constructor" FROM table_38021 WHERE "Driver" = 'timo glock'
SELECT "Constructor" FROM "table_38021" WHERE "Driver" = 'timo glock'