I work part time for a company that has 80 1/2 tons in their fleet. Used to run Ford & GM. In 2011 started the gradual switch to Toyota Tundras. I talked to the man in charge last week about any differences. His comments were. Toyota burns more fuel, Toyota costs more to repair when repairs are needed. When you trade them in for a new one, which they do every 5 years, you get the extra money you spent on operating them back because of a higher resale value. He said the company finds no difference other than driver preferences in what is driven. These trucks never tow anything but they are used very hard.