Citroen rhymes with:
pharaon, aiton, aon, bastone, briggstone, brimstone, cellphone, cerbone, gambone, glendon, halcyone, hendon, keown, ketone, lactone, marylebone, milhoan, moton, okon, pharaon, pistone, provolone, rendon, shadoan, shimon, shimone, smothermon, tabone
Citroen sounds like:
cadrone, castorena, caterino, catharine, catherina, catherine, catherman, catron, cauthorn, cawthorn, cawthorne, cdrom, cedrone, chadron, chesterman, cistern, citrano, citrin, citrine, citron, cothern, cothran, cothren, cothron, cotrone, cotroneo, cotterman, cutrona, cutrone, cutworm, cydrome