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Pontiac Grand Prix GTP specs

Car type 4-door saloon
Curb weight 1544 kg (3404 lbs)
Dimensions 4.81 m (190 in) long, 1.78 m (70 in) wide, 1.34 m (53 in) high
Wheelbase 2.71 m (107 in)
Introduced 1997
Origin country United States
Views 6.4k

Powertrain specs

Engine type 90┬░ V-6, OHV, 2 valves/cylinder
Displacement 3.8 l (232 ci)
Power 243 ps (240 bhp / 179 kw) @ 5200 rpm
Torque 380 Nm (280 lb-ft) @ 3200 rpm
Power / liter 64 ps (63 hp)
Power / weight 158 ps (155 bhp) / t
Torque / weight 246 Nm (182 lb-ft) / t
Transmission 4-Speed Automatic
Layout front engine, front wheel drive
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hostboy  1m ago

This is basically the same car as the Buick Regal GS (1997-2004), both of which underpinned the 2003-2005 Impala and Monte Carlo SS. GM had an odd way of classifying both performance and size classes in its days. The Grand Prix was "midsize," and marketed to Accord/Camry/Maxima/Altima buyers, when it was actually sized like the Avalon and Taurus and Intrepid

The Bonneville wasn't much bigger than the Grand Prix, but it was far too upscale even for likes of the Intrepid and Crown Vic. That particular car's SSEi version was packed with the same exact powertrain as the Grand Prix GTP as shown here, but because it was heavier and trained with a longer wheelbase, it got ditched and replaced by a Northstar V8 (GXP) version.

Bonneville got discontinued and replaced by Australian-built G8. Grand Prix sorta continued on. The GTP continued halfway through the Grand Prix's last generation, and got replaced by the LS2-based, yet shorter-displaced "LS4" V8...a true sleeper. (Sadly it wasn't much faster, probably not at all, compared to the N/A V6-powered G6 GXP.)

Most of the "Super Sports" weren't that special, unlike the ones from the 1960s. I could go on and on :)

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Shaggy  7y ago

@Inline 6 Rules: The engine was the main problem. I think what stopped it from going over 30 mph was the catalytic converted, they were recalled for it. I didn't know it at the time. It was also leaking fluids, which caused a fire.

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Inline 6 rules  7y ago

Did you have problem with the engine? The wikipedia says the Buick V6 are quite reliable: "Production of the 3800 V6 engine officially ended on Friday, August 22, 2008 when plant 36 was closed. There was a closing ceremony and speakers who extolled the virtues of the engine. Originally GM had set this date for January 1, 1999; however, due to the vast number of complaints from both investors and customers because of the popularity and reliability of the engine, the date was extended."
I wonder if your car with this said to be reliable engine had so many problem than how much problem would have if it have the "General Motors High Value engine"? That engine family was created to be the sucessor of the Bucik V6 engine but it only lasted from 2004 to 2011 (it lived through only 3 years of its precedessor), so I wonder how "good" it was.
According to the numbers it wasn't on par with the German and Japanese six cylinders from that time:
3.5 liter version: 196/201/211/217/219/224 HP and 289/293/298/300 Nm.
3.9 liter version: 233/240 HP and 325 Nm.

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Shaggy  9y ago

It's a shame, really, how a car can look this good and be so horrible, mine was a normally aspirated version in black with the 6 spoke 2 tone wheels, looked really awesome, it was quick, too, when it was running right, I had so many problems with that car, power windows stopped working, loose tailpipe, windshield wipers stuck up when not in use, power steering leaked, L-joint in radiator hose broke, spewing engine coolant got that fixed, though, and the engine and transmission felt like someone had stuck a banana in both of my tailpipes. Every time I got out of my car I looked at it and shook my head in disappointment. That was the last and only Pontiac I ever will own, owning that car was a very bad experience for me, now I hate Pontiacs, the make was put out of its misery in 2009, same year mine went up in smoke.

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Shaggy  9y ago

I had a 2002 Pontiac Grand Prix GT sedan once, it was a real lemon, caught fire one day when I was driving it to work.