Northstar V8 Engine
At the heart of the Northstar System is a 4.6 liter dual-overhead cam V8: a premium powerplant that is quiet, clean-running and efficient.* In the STS, this 32-valve, port fuel-injected engine produces 300 horsepower and 295 ft-lbs of torque...on regular unleaded gasoline. The SLS has an impressive 275- horsepower engine. Both engines achieve such high levels of performance by micromanaging and precisely adjusting critical systems - spark, fuel-air mix, etc. - to match driving conditions moment to moment.
Northstar's capabilities even include the ability to continue powering Seville for a limited range without a single drop of coolant in the radiator. The engine is capable of traveling for a limited range without engine coolant without damaging the engine, giving you a chance to drive to a safe repair location.
When it comes to comfort, you expect a luxury car to deliver. Seville does -- with a number of advanced features.
