Welcome to semi trucks! The Revell-USA snap Kenworth W900 is a decent kit. The engine is well detailed, and the truck itself builds out nicely. The frame is a little simplified, the tires are too skinney & fit poorly, and there is no brake detail. With a little effort it can be a well detailed model. The model represents a 1976-82 W900. So you know, the engine is a Caterpiller 3406 and should be Equipment Yellow, not tan per the instructions.