Bigfoot Sighting!
 

The site was in Japanese, whether or not this is the OFFICIAL version or a Mod...I can't confirm.

...Looks pretty damned cool either way!

http://tinyrc.com/gallery/album13

haha thats kool...but hmm..looks like it can jump over the corner rails easily...

it doesnt look like an official BC-G, but it's none the less awesome

I'm pretty sure it's a mod - those are LEGO tires! But it's very cool!