A couple things to take into consideration.
What was the price of raw materials back in '03? It takes a lot of steel to build a truck and the price of scrap is way up. Scrapyards aren't giving that high dollar and then selling it for a loss.
The price of energy is way up. It takes a lot of energy (oil, natural gas, electricity) to make all that plastic, steel, and to light, heat, cool, those assembly lines, and run those robots.
Trucks are in demand because construction is coming back. The manufacturers make more profit on a truck than a car. They are just taking advantage of that.
