Mental is not the word. I can happily throw the Atom about at 8/10ths, but this is something different entirely.
Imagine a 2 ton Atom that you have to hang on to, it is a relentless 600horses and it can lay them all down, instantly, bends or otherwise.
It'll take me a while to get used to it, it's worryingly quick - imagine the first time you experienced the Atom... It's like that but carrying a lot more kinetic energy.
Been out everyday since I've had it + a Tunnel Run and still not gone past 50% throttle, obliterating everything.
Love and respect it in equal measure...