Its called Klasse. I saw a guy talking about it and he posted a side by side pic of the plastic hood he polished. Looks to have worked wonders. Here is the link to the thread. It looks like there was some paint peeling towards the front edge. Seems thats gone too. I have yet to buy any but plan on it. ITs not exactly cheap. But neither are these toys we have.
http://www.mytractorforum.com/showthread.php?t=202824