Before purchasing your U20C chassis, check whether your U20C is a V1 or V2.
 
There are two details that must be used to identify the differences between a V1 and V2;
The first: In V1 the U20C comes with Kadee 262 coupling boxes (black), in V2 the U20C comes with Marumbi Modelismo's own production coupling boxes (resin color);
The second: In V1, the interior of the cabin roof is empty, without any inscription, in V2, the interior of the cabin roof has inscriptions identifying which version of the U20C is yours, and the Marumbi Modelismo logo.