Be glad too. Government regulations that requires more and more electronics on your vehicle. More expensive engines to comply with ridiculous emissions requirements. Labor union costs, contracts and ever expanding pension costs. Research for future vehicles. Monies set aside for litigation in case ANYBODY has an accident that could in any way, no matter how small, relate back to the manufacturer. Government mandated recalls. And last but not least (well maybe it is) profits for the shareholders.
+ cost of metal
Good list, but you left out a biggie: customers willing to buy at that price point. Until people stop shelling out big bucks for vehicular crap sandwiches, auto manufacturers will keep peddling vehicular crap sandwiches.