I have found the Deville to be comfortable, quiet, and surprisingly fuel efficient. The car averages 23 MGP. Highway mileage approaches 27-29 MPG.
The Northstar V8 is strong and responsive. Obviously, a car of this size does not handle like a sports car, nor was it designed to do so,
but it is a beautifully designed cruiser. Virtually every option was ahead of its time back in 1998, and they are still workings flawlessly 13 years later. A true testament in reliability!
I love this Deville! The luxurious appointments are well defined. Fuel efficient. Stability Control.