Pretty sure I read that CAR currently has the top rated offense, although I'm not sure what that's going off of. I'm assuming points scored, although it may only have been in the regular season if the poster above is true and we're scoring 33.0 to their 31.2.
At any rate, I fear you may be selling them a bit short. They have a solid run game, a TE which is proven and comparable to ours, and a WR corps that produces far more than anyone expected them to (remember all of the threads and comments about how ****ty CAR was going to be due to their lack of receiving options?). Cam Newton, as you mention, is obviously the straw that stirs the drink, and is the clear cut MVP this season.
After considering this as well as their very strong defense, I will be rooting for ARZ, should we come to that point at 6:30 Sunday evening.