PTink,

Yes, all the DigiQs including the Trueno have that sticker on the rear. It has the car's infrared ID number, and tells what car it is.
The rear plate looked so huge to me from the pictures on the web, that I was worried it would make the car look ugly and I'd have to find ways to modify it, maybe with my own custom sticker.

But the car is so small, that the only time I notice the sticker is if someone asks about it, like you just did

If you're worried about the looks of the rear like I was, don't give it another thought. It looks great!