None of the cars you listed is safe to pull two jet skis with. Rent a truck to be safe, but if you must pull it with the Grand Am. If your going to damage a vehicle, damage the Grand Am. I used to see people in Fl tow two jet skis, or a small bass boat with them all the time. The former owner of my Lebaron GTC Convertible towed two jet skis with it, didn't hurt the car.
(too much) You don't want to tear into any part of your SVT to tow a jet ski. Like someone said earlier Grand Ams are a dime a dozen, an SVT is something that is no longer made and was a limited production item. Don't ruin it for two jet skis, and don't even consider getting a truck or SUV to tow it with. You bought an SVT because it was something not every one has, and because it was fun to drive. Keep it that way, don't ruin it.
