The Hennessey HPE700 has the heart of a ZR1 whacked-out on automotive meth and producing an ear-splitting 724 HP and 741 lb-ft of torque. Seriously, check out the video, it's like the banshee wail of a thousand PBR-soaked party-goers.
If you were paying attention, you'd notice we said 724 HP, indeed the final figure is higher than the projected 705 HP Hennessey was initially shooting for. With that kind of power under the hood, the car hit MSR for a couple of joy laps, and we really mean joy. Check it out: