CREATE TABLE table_203_19 (id DECIMAL, "number" DECIMAL, "builder" TEXT, "type" TEXT, "date" DECIMAL, "length" TEXT, "notes" TEXT)

what was the number of cars built by american car company ?
SELECT COUNT(*) FROM table_203_19 WHERE "builder" = 'american car company'
SELECT COUNT(*) FROM "table_203_19" WHERE "builder" = 'american car company'