I've noticed this as well and thought the car needed to have an alignment done but then I noticed it pulling the opposite way as well. You can really tell how the roads are worn in this car. The Crossfire might not line up as well in the grooves so it's catching the higher points or lower points of the road and the larger tires are grabbing a hold and taking the car with it. As far as the culprit, it could be the width of the car is smaller or wider (I would need to look at numbers) than most cars on the road and it' causing it to pull by catching the grooves.