The Killacycle is a platform for A123 nanophosphate batteries, which have an extremely high discharge rate. It's a drag bike which doesn't have a range much over 1/4 mile. To put it in perspective, a bog-standard ZX-14 or GSX-R 1300, perfectly usable on the street, does 0-60 in under 3 seconds. It doesn't feel that fast once you've gotten used to it for a few weeks.
The need... the need for speed.
I own a Kawasaki Ninja 650R. A fairly slow bike by sportbike standards. It does 0-60MPH in about 3.8 seconds. Frankly, that feels very slow. I've been riding for many years though.
It's amazing how your brain and body adapts to fast speeds.