CREATE TABLE table_19907 ("Series Ep." TEXT, "Episode" FLOAT, "Netflix" TEXT, "Segment A" TEXT, "Segment B" TEXT, "Segment C" TEXT, "Segment D" TEXT)

What is Segment A where Segment D is luxury sports cars?
SELECT "Segment A" FROM table_19907 WHERE "Segment D" = 'Luxury Sports Cars'
SELECT "Segment A" FROM "table_19907" WHERE "Segment D" = 'Luxury Sports Cars'