I have an '04 Pontiac Bonneville GXP and overall, I love the car. It has a very smooth ride, sporty styling especially for a 4-door sedan, and has plenty of power with the Northstar V8 (@275hp). Plus ...
I have an '04 Pontiac Bonneville GXP and overall, I love the car. It has a very smooth ride, sporty styling especially for a 4-door sedan, and has plenty of power with the Northstar V8 (@275hp). Plus its FWD with traction control so it handles snow, rain quite well. Even with the V8, I've been getting 15-17 mpg city and 22-25 mpg hwy.
Although I really enjoy this car, the quality can be a little suspect at times. I've had to fix/replace parts that I've never had issues with on other cars, but then again, they all have been fairly cheap repairs (~$30). Also, with the Northstar engine, you have to know how to drive it to properly maintain it. This isn't your average sedan motor; it was built as a performance engine and that's how GM tested it. Owners need to realize when they purchase this car that it is meant to be driven hard at times (WOT). By driving it at WOT, the piston rings create a better seal and carbon build up is removed. Moreover, some oil consumption is NORMAL in this vehicle. It was designed to push more oil towards the rings to keep everything lubricated hence the 7.5 qt in the crank case. There is plenty of information on the net on this topic if you need to do more research.
Once I came to understand how to maintain this car, it has been a very fun and reliable car for me. I am glad I own it and would recommend it to anyone looking for a performance sedan on a budget.