Bonneville versus Grand Prix - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


2000-2005 Discuss your 2000-2005 Bonneville SE, SLE, and SSEi Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 02-16-2013, 06:33 PM   #1
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Default Bonneville versus Grand Prix

I am looking for a 2005 Bonnevile with less than 120,000 miles and they are hard to come buy. Seems to be more Grand Prix'* out there and a little more economcial. The later Gran Prix has the series III engine. Is the Grand Prix just as good a vehicle as the Bonneville. Same drive train?
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Old 02-17-2013, 03:30 PM   #2
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I personally kind of like the 2005 Grand Prix, but it depends on what you are used to. The Bonneville is definitely going to be the more luxurious and smooth riding vehicle and I would prefer it over the Grand Prix. Looks like you currently have a 2003 SLE? Don't tell me you are planning on selling it! I'm never letting my 03' go, they will have to pry it out of my cold dead hands!
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Old 02-17-2013, 03:40 PM   #3
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they wear out eventually. the engines are good. the gp'* arent as roomy either. so i agree depends what you want. i personally would rather have the gp because i like the sporty ride and normally drive by my self. but my wife likes her bonnie because the ride is a bit more compliant without being floaty. and we can have 5 people and a ton of groceries or whatever in the back and all be comfortable
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Old 02-17-2013, 07:17 PM   #4
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Not selling the 2003 just looking to add another.
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Old 02-18-2013, 09:34 AM   #5
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i like the wbody coupes for dd'*. and the 3400 can get high 30'* with just e3 plugs. its easier to find a good 03-05 3400 monte for reasonable money. i had a 03, and put 170k trouble free miles. you dont want the early 00-to early03 had gasket issues. i didnt want the GP because the 3800 doesnt get as good mileage and has the upper intake problems. they had a 3100 available but ive never seen one
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Old 02-18-2013, 01:10 PM   #6
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I bought my 2005 Pontiac Bonneville GXP with 67k miles for 11,995 in October 2012 !!! Wayne
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Old 02-18-2013, 01:56 PM   #7
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Quote:
Originally Posted by Abbby View Post
I am looking for a 2005 Bonnevile with less than 120,000 miles and they are hard to come buy. Seems to be more Grand Prix'* out there and a little more economcial. The later Gran Prix has the series III engine. Is the Grand Prix just as good a vehicle as the Bonneville. Same drive train?
To specifically answer your questions, the GP is just as good as a Bonneville, and they have the same drive trains. Beyond that it is a matter of more room, or more sporty.
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Old 02-19-2013, 12:16 AM   #8
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Having owned a '97 Bonneville and '99 Grand Prix, I'm officially undecided. As you've heard so far, the Bonneville was a smoother ride and the GP is sportier and handles better.

That aside, I've noticed the Bonneville is a little easier to work on due to more engine bay space and not having annoying mounts on your valve covers (though you get an annoying one in the belt path). For some reason, I hear the GP'* rockers and wheel wells are slightly more prone to rust, but I haven't noticed any differences.

Just flip a coin. Both cars will satisfy you.
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Old 02-19-2013, 09:22 AM   #9
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The Bonneville will have more room, better ride, and a all around better car.

The GP will be more sporty, faster, a little better mileage.

So the question is, which do you want. A fast sporty car, or a slightly less fast, but more roomy car with a great ride. Only you will be able to make that choice. For long drives, the Bonneville is the choice. The GP tends to be a bit rougher of a ride, and that will wear on you after a while. If your looking to do mods, the GP is the better choice.
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