I've just come across this topic through browsing and whilst I admired the first Rattler for the aesthetics and utilising the landscape i.e. quarry, I can't help but find the hybrid Iron Rattler to look a bit... Eugh. It's amazing what's been achieved through this conversion but it doesn't scream out 'look at me, I'm awesome!' to me at all. It has that bland appeal particularly because of the colours and the new track.
The track wobble on the original is absolutely hilarious though.