Details > SOLD! 1975 Oldsmobile Delta 88 Royale Convertible Private Party Sellers Click here to place your ad now! You auta tell them you saw the ad in AutaBuy when you call or email. Exterior Color Midnight Blue Metallic 1975 Oldsmobile Delta 88 Royale Convertible Description: · Color: Midnight Blue Metallic Sold! Exterior Color Midnight Blue Metallic Call Seller Midwest Car Exchange Call 708-388-5277 ALSIP, IL Mention AutaBuy.com when you call. Sold! Midwest Car Exchange Call 708-388-5277 ALSIP, IL Mention AutaBuy.com when you call. [entire inventory] Do you have a similar car to sell? List It Now! Like us on Facebook! · Subscribe to AutaBuy! · Send a Gift Subscription Notice to a Friend