I have been looking at the 4600 series tractors (4608, 4609, 4610). I have read and been told that the 4600s have a SISU engine made in Finland, and assembled by Iseki in Japan. I have been looking at a 4608 and 4610. I was looking at the engine manufactuer plate on the right hand side of the engine. The plate says the engine is manufactured by AGCO "Changzou"... In Changzou, China. Both tractors had the same plate. Dealer was unaware of China and thought they were Finland/Japan. Does anyone on this forum know where they are being built for sure? Any experience with a Changzou built tractor? Thank you for your help.