hey B, is it a muscle machines chassis ? i didn't see a pic or anything.... but here's my guess and if it is a mm chassis this "is" what it is... you've seen the race version mm's... nevermind i'll through a pic in of one of mine... sooooo these were a very limited edtion i think hobby only or i've even heard they were a target exclusive ? either way these car's are rare. there called race version's cause the metal chassis made them faster due to the increased weight if you race on a downhill track... hope this help's bro..... ACE