Ok I work at a Cat dealer in Texas, and have been on the up and up on our ag products. Agco bought our ag track tractor line and kept the Challenger name. They sold their combine branch back to Claas. So we carry both lines of equipment, but Cat does not build any farm equipment. Cat builds componets and supplies these manufactures with engines. Agco bought out hundreds of companies and keeps them seprate. like the compact line of tractors we were told that the Challenger is the same as the Massey, and the Agco. When we order body parts the come un painted, and you have to paint it to match the line you are selling. But the keep us all seperated, we cannot sell other brands of Agco except the Challenger, Sunflower, Tergator_Rogator, and lexion.