You are right. I must have been thinking about how El Camino (Chevrolet) has always been two words, and, of course, Eldorado is correctly listed on your site as one word. De Luxe and DeLuxe probably vary among the same maker depending on the year. Cheers. Now to look around for a 58 Buick Limited or Limited Riviera, which according to Quentin Wilson, has 12 "utterly pointless" diagonal chrome slashes running from the C pillar to the back end.