Here’s a little background on how John Hennessey ended up building the VelociRaptor 600 for Jeremy Clarkson to beat the crap out of in one of his last Top Gear episodes. More importantly; sweet shots of the truck doing donuts in the snow and mud.
I guess Hennessey also shills for Penzoil now? Maybe that was the reason behind the color choice.
If you want to see this big yellow blur go even faster; check it out in the hands of The Stig: