Can you provide us with a link to see what you're talking about?
The stuff I've seen feels like the product they use on bass speakers boxes. But they make a pad that lays down in pickup beds to. Perhaps that's the product?
Sorry, not savvy enough to post a link but I did a search and came up with a company called Real Truck that sells a Pro Van Carpeted Liner that looks like a Bedrug mat but it's for the walls. Wondering if anyone knows anything about it.
looks nice, but im guessing you could build your own for cheaper.
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"understeer is when you hit the wall with the front of your car, oversteer is when you hit the wall with the rear of your car, horsepower is how hard your car hits the wall, and torque is how far your car moves the wall."