Towing capacity could my car get a towing package installed, and what would it's max. capacity be ? such as a camper trailer.

There are two different hitches available for your vehicle A class I hitch, which is rated to tow up to 2,000 lbs, and a class II hitch which is rated to tow up to 3,500 lbs. Now this is based on the frame. To find out how much you can really tow, you'll have to go to your owners manual.

97 Grand Prix SE Sedan

Class I - #24659 - Installation Instructions
Class II - #36232 - Installation Instructions

97 Grand Prix GT, Coupe & Sedan Inc. GTP Package

Class I - #24660 - Installation Instructions
Class II - #36241 - Installation Instructions

These hitches I've listed are made by Draw-Tite, and you can view them here.

Hope this helps!

While a Grand Prix isn't really designed to tow,the capacity of the car would be 4 adults and luggage.In my estimation,that would equate to roughly 1000 pounds that the car can comfortably haul around.Now,you do have to realize that this is going to be ******* the transmission especially,and the engine secondly.Definitely install an auxiliary transmission cooler to help dissipate the heat from the trans fluid.A close look at the rear suspension and possibly any upgrades there will help out with the tongue weight that a trailer creates.Check and see how much the trailer actually weighs before proceeding.Unlike cars of 30 years ago,that were outfitted with V8,rear wheel drive, truck engines and transmissions,today's cars really aren't the ideal choice to tow with,as a front wheel drive transaxle is pretty light duty.Towing a lawnmower and small trailer,or a jet ski,no problem.A camper trailer would need to be really light,and the other issue might be brakes.Check your brakes really well on your car,as they will also be stopping the weight of whatever you're towing.Good luck.