A Seville option package since late 1988, the Cadillac Seville STS became a separate model in 1990. As with the Eldorado Touring Coupe (which shared the same platform), the 1990-1991 Cadillac Seville STS offered better handling and less chrome than the base model. Automatic-adjustable shock absorbers firmed the suspension at highway speeds and during fast cornering, but offered a comfortable ride at other times. Anti-lock brakes were standard on the STS.

The 1991 Cadillac STS, part of the 1990-1991 Cadillac Seville STS line of collectible cars.
1991 Cadillac ST.  See more pictures of classic cars.

A 1990 change to multi-point from single-point fuel injection added 35 horses for a total of 180 horsepower. For '91, a displacement increase from 4.5 to 4.9-liters upped horsepower to 200. Handling and performance compared well with the imports the STS was meant to battle.

A luxurious wood and leather interior was marred by a digital instrument panel. Front seat room was good, but the back seat lacked leg room. In '91, the rear center console was dropped to allow three-across seating. Most prefer the styling of later Sevilles, but the smaller size of this generation made the STS more nimble.

Pluses of
the 1990-1991 Cadillac Seville STS:
  • Ride and handling
  • Performance
  • Interior
Minuses of the 1990-1991 Cadillac Seville STS:
  • Squared-off styling
  • Back seat leg room
  • Digital gauges
Production of the 1990-1991 Cadillac Seville STS:
NA

Specifications
of the 1990-1991 Cadillac Seville STS:
Length, inches: 190.8
Wheelbase, inches: 108.0
Weight, pounds: 3,570
Price, new: $36,320-$37,395 (U.S.)


Engines
for the 1990-1991 Cadillac Seville STS:
TypeSize
Horsepower
Years
ohv V-8273 cid
180
1990
ohv V-8300 cid200
1991

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