True, Honda has higher sales growth in 2003. But Nissan will take that title in 2004 since the sales of its Titan and Armada/QX56 alone is enough to take the title. Not to mention the next M35/45. Basically, my point is, in order for Honda to keep on growing fast, they would have to get into the truck market and have more SUV. Their car sales has already doing so well, I don't see much room to grow.
The truck market has the most brand loyalty of all market. True it'll be hard to take sales from the Big3 in that market, but with a exceptional product, it's possible to make a dent since it's the most profitable market. Toyota hasn't been able to take market share from the Big 3 because the two attempts (T100/Tundra) are weak. It's smaller than the rest w/ less power and TQ than the rest. How can you expect to take market share from the leader when you can't even match the leader in what counts. The Titan's sale # will show how easy/hard it is because in term of power, towing capacity, size, and interior quality, it's top notch.