My 99 GTP has 184k and the motor still runs very well. But it does have some accessory maintenance issues (like the A/C) that may take some time to resolve. I'm considering buying a "backup" vehicle. Two currently under consideration are a 2006 Grand Prix GT and 2006 Grand Prix GXP. (I also liked an 04 Monte Carlo SS but my wife is still laughing about the Dale Earnhardt head rests.
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The GT has the Series III 3.8L S/C V6. Is this engine as reliable the Series II? Is it an improvement over the Series II? Are there any chronic issues or anything that bears close inspection?
I like what I've read about the GXP performance and the features. I became alarmed when I read that the engine is mounted from the bottom which complicates repairs...do you agree or disagree with that assessment? How tight is the engine compartment with that V8 in it? Is it more difficult to work on than the Series II V6 in a Grand Prix? Also, should I be concerned about the aluminum block in the V8? Are there any other GM cars with that FWD V8 so I know parts will be available at reasonable prices?
I appreciate any feedback.