CREATE TABLE table_42355 ("Region" TEXT, "Location" TEXT, "From" TEXT, "Depots  ( 12.09 ) " FLOAT, "Routes  ( 12.09 ) " FLOAT, "Vehicles  ( 12.09 ) " FLOAT)

What region has 57 vehicles?
SELECT "Region" FROM table_42355 WHERE "Vehicles (12.09)" = '57'
SELECT "Region" FROM "table_42355" WHERE "Vehicles (12.09)" = '57'