The Cat / Tomcat

My questions about the Traxxas Cat are as follows:
Was it available in kit form?  I've found the Traxxas Cat and Tomcat (which appear to be identical) but what I've seen appears to all be RTR. I've not seen indication that it was available as a kit.
Is there any difference (other than branding) of the Cat and the Tom Cat?  I've seen box art which is different, but the product appears to be the same.   

Below are some pictures of my Tom Cat.  I have the original box and controller (it was an RTR package) and it appears to have never been used.  I've tested the functionality of the buggy and everything works perfectly.  The box is in decent to good condition but the buggy is in excellent condition.