Well, there ARE Isuzu, Hino, & Mitsubishi medium duty trucks (ie, NOT American made) that I have seen used as TV's for heavy weight TT's but I'm nit picking and I do get your point! Tundras and Nissan 1/2 tons should be out of contention once GVWR's reach 10,000 pounds.
John Alldredge, lurking...