This car has been nothing but a pain since I bought it. I've had to replace 2 window motors, a transmission (100,000 miles), blower control module, blower motor, stabilizer bar, and now the CV joints are going bad. When it rains hard you get water the car and trunk. Almost impossible to change the spark plugs yourself. Interior components are cheaply made and designed. The gas mileage is unimpressive. The front doors have started to rub the fender when you open them!! I find it disturbing when i go tot he junkyard to get parts that there's an abundance of Grand Prix to get parts off of. I will never buy another GM product.
Heated seats I guess
If your going to take a quality engine like the 3800 then you should build a better quality car around it.