1998 Pontiac Grand Prix GTP 3.8L Supercharged from North America

Summary:

Performance, looks, comfort, and reliability at an awesome price

Faults:

The transmission acts a little peculiar. When driving at lower highway speeds (55-60) it surges a little like the torque converter can't decide whether it wants to lock up or not.

The tension pulley for the supercharger makes a little rattling noise at idle, but any increase at all in RPM makes it silent.

When I first turn on the heater fan, it chirps a little but becomes silent after about 5 seconds.

The lamp burned out on the factory stereo's clock/station indicator.

One of the tail light lenses has allowed moisture in.

General Comments:

I have to say that for the age and mileage of this car, I am thoroughly impressed. The person I bought it from was the second owner for 5 years. She never washed it and it still has no rust anywhere on the body. Fortunately she kept the interior clean so it is nearly perfect inside.

This car runs far better than the '95 V8 Cougar I have. If I didn't know any better I would think this thing has a good running V8 in it. I gotta give Pontiac props for supercharging an already good engine.

At faster highway speeds (65-70) the surge goes away and the ride is firm but smooth. I was doing 95 with my dad in it one day, and he asked me if the speedometer was right, because it was smooth and quiet.

I am also impressed by the handling it delivers. It handles like a foreign car with fancy suspension, even though it only has simple McPherson strut suspension. I usually don't have to slow down at all for curves on dry pavement.

Even though the torque converter lock up feature doesn't work properly, this car still gets astounding gas mileage for such a big car. I can get about 30 out of it if I keep my foot light on the pedal. Even lead-foot driving yields 22-25.

Here is a testament to some of the folks talking so good about their GTP's with lower mileage. They still have a long way to go.

Would you buy another car from this manufacturer? Yes

Review Date: 23rd December, 2008

1998 Pontiac Grand Prix GTP 3.8 Liter from North America

Summary:

The ultimate full size family sedan

Faults:

Had to get rear window motor replace. Apparently, it was burned out when I bought it.

Radio clock would overheat and mess up. No biggy though. Went to an aftermarket sound system.

Belt tensioner pulley had to be replaced. Started to squeek really bad.

Brakes are the weakest point on the car. Squealing was the worst of any car I owned. Brake upgrade kit was the best thing to do to the car.

General Comments:

Well, nothing really bad has happened to the car. What's to say about it. Other than the normal wear and tear, this car runs awesome. On long trips, the car is extremely comfortable. Gas mileage is great. Averaged 28 on the highway traveling from Florida to Okalahoma. Everyone who rides in the car comment on how big the car is and how smooth it rides. Not to mention, the car turns head with its bright red paint.

The one thing I'd advice that you get when you purchase one of these cars is a wheel/tire upgrade. With the supercharged motor, this thing loves to spin the wheels easy, especially in wet weather.

Handling for the car is really good for its size, and not to mention that it is front drive. After putting 18 inch rims, and getting a higher rating tire, it handles awesome, even in wet weather. Some under-steer is evident, but its not bad.

For those who like to upgrade the performance on the car, you'll be surprised on how many performance parts are available for the car. And not to mention the cheap price for them.

The acceleration on this thing is awesome. With a little modifications, like a pulley swap, throttle body spacer, chip, and exhaust, I blew the doors off my friend new 2002 Mustang GT. And, if you want to make it a sleeper, all you got to do is remove the GTP badges on the side of the doors, and you'll surprise a lot of people out there.

Have fun and safe driving.

Would you buy another car from this manufacturer? Yes

Review Date: 21st December, 2004

17th Jan 2005, 14:39

I have a 2000 GTP, what can I do to it, to make it faster? I called Jegs and Jetchip. They have nothing. You mentioned a chip, throttle body, etc. Please let me know.

Paul.

3rd Apr 2005, 10:01

I'm the original owner of my 1998 GTP NASCAR. This is the most reliable car I have ever owned. Not a thing wrong with this car. I replaced the original brake pads and belts at 65K miles! My mechanic a personal friend of mine could not believe it! This car is a keeper and my lucky son will be inheriting this car for his college years.

The only complaint are the struts. It has got to be the cheapest and the worst struts ever produced!!! My advice is to replace struts ASAP with KONI struts and lowering springs. Also, a GREMLIN lives inside the dashboard. I finally found out how to kill the gremlin.

Besides the minor complaints above... basically a bulletproof engine/car.

Go out there and buy a used GTP for $2500.00!

29th Aug 2005, 23:34

For aftermarket parts there are many websites - but check out these 2 for the most info:

clubgp.com

pfyc.com

Great car, reliable, awesome sleeper. I have a 1998 GTP, which is totally stock, and I killed a nice looking Foxbody Mustang!

18th Nov 2005, 18:00

Zzperformance.com.

They specialize in only the 3.8 liter motor... They have everything...

5th Jan 2006, 10:26

I am in agreement. This is the best car I have ever owned. Zzperformance.com is the best GTP website for upgrading superchargers and overall performance of the car.