Cadillac Seville

The Cadillac Seville was a luxury-type car manufactured by the Cadillac division of American automaker General Motors from 1974 to 2004.

1995
This car's two models were not as similar as their appearance might have suggested. The Seville Luxury Sedan (SLS) had a chassis tuned to the tastes of the most discriminating luxury-car buyer (that is, soft and cushy), plus a full array of safety, comfort and convenience features to reinforce that image. The Seville Touring Sedan (STS) had all of the above, with the exception of a chassis that's been retuned to provide a sportier driving style, with tighter handling and a somewhat firmer ride. Both Sevilles competed head on with the Lincoln Continental, Lexus GS 300, Infiniti J30 and midsize Mercedes-Benz and BMW sedans.

Powered by the 4.6-liter Northstar 32-valve V8, both cars had the unusual ability to drive as far as 50 miles with no coolant in the radiator without permanent engine damage. This was done with engine management software that restricts power to a minimum and alternates the firing of adjacent cylinders to allow intake air to cool the engine internally in the event of a catastrophic loss of coolant.

Like the other Northstar-powered Cadillacs, the standard traction control system can be switched off if necessary. The optional computer-controlled suspension uses suspension arm accelerometers and position sensors plus a steering-wheel angle sensor to adjust shock absorber damping for optimum handling and braking. 

A new plastic intake manifold had raised the Northstar engine's output by 5 hp to an even 300 hp. It replaced nearly 100 parts with a single lightweight manifold that has a superior interior polish for increased airflow and power.