I've never seen one of these

 

 

http://www.ebay.com/itm/Tamiya-58077-Mud-Blaster-Subaru-Brat-R-C-Car-without-Radio-/231532335828?pt=LH_DefaultDomain_0&hash=item35e86712d4

This version is much more faithful to the original, and it is back in production now!!!!! Made by the same company, same body, but a more realistic chassis.

 

https://www.tamiyausa.com/product/item.php?product-id=58384

The new production run you can get for around $175 (after shipping) + a battery and remote.

The older original's i've seen go for anywhere from $80 to $250.

 

Both by Tamiya who is a very reputable RC producer.

I would think they would make them 4 wheel drive like the real brats since there remakeing them anyway

In my opinion you are best off taking the brat body and putting it on a Tamiya CC-01 chassis.  The body fits perfect and it looks good with RC4WD 1.55 white steel wheels.