A brand new Seville rode the same new platform as Eldorado -- 17 inches shorter and 375 pounds lighter than before. Gone was the striking razor-edge styling of 1980-85, replaced by a body not much different from Eldorado's, or from other GM vehicles. Standard engine was the Cadillac 4.1 liter V-8, hooked to four-speed overdrive automatic transaxle. Seville's vertical grille had a fine-mesh crosshatch pattern. Clear rear lenses of the horizontal side marker lamps were angled to match wheel openings. Very wide, clear parking/signal lamps were inset into the bumper area.
The Clearcoat finish had a new (standard) two-tone paint treatment. New front bucket seats were upholstered with Royal Prima cloth and Sierra Grain leather seating areas. The front console included a fold-down armrest and storage compartments, while American walnut highlighted the instrument panel, console and steering wheel. Optional: a cellular phone with removable handset in locking storage compartment, and hidden mike between the sun visors. A "driver information center" in the digital instrument cluster displayed electronic readouts of outside temperature, fuel economy and engine data, including a tachometer reading. Retained Accessory Power allowed many accessories to remain operative up to 10 minutes after shutting off the ignition (or until a door was opened).
Standard equipment included
Seville's special-edition Elegante was offered again, carrying wire wheel covers and displaying a unique mid-tone paint scheme. The package included
American walnut wood plates trimmed the doors. Elegante was upholstered in Mayfair cloth with Sierra Grain leather seating areas, with a package price tag of $3595 and up.
| Model | Series Number | Body/Style Number | Body Type | Seating | Factory Price | Shipping Weight | Production Total |
| Seville (V-8) | 6K | S69 | 4-door Sedan | 5 | $26,756 | 3371 lb | 19,098 |
| Type | 90-degree, overhead valve V-8. Cast iron block and head. |
| Displacement | 249 cu. in. (4.1 liters |
| Bore & stroke | 3.47 x 3.31 in. |
| Compression ratio | 8.5:1 |
| Brake horsepower | 130 at 4200 R.P.M. |
| Torque | 200 lbs.-ft. at 2200 R.P.M. |
| Main Bearings | Five main bearings |
| Valve Lifters | Hydraulic valve lifters |
| Fuel Delivery | TBI |
| VIN Code | 8 |
| Wheelbase | 108.0 in. |
| Overall length | 188.2 in. |
| Height | 53.7 in. |
| Width | 70.9 in. |
| Front Tread | 59.9 in. |
| Rear Tread | 59.9 in. |
| Standard Tires | P205/70R14 |
| Transmission | Four-speed (THM440-T4) automatic |
| Gear ratios | (1st) 2.92:1; (2nd) 1.57:1; (3rd) 1.00:1; (4th) 0.70:1: (Rev) 2.38:1 |
| Standard final drive ratio | 2.97:1 |
| Steering | power rack and pinion |
| Front suspension | MacPherson struts with dual path mounts, coil springs and stabilizer bar |
| Rear suspension | independent with transverse leaf spring, struts, electronic level control |
| Brakes | four-wheel disc |
| Fuel tank | 18.0 gal. |
1985