How much did Mad Max: Fury Road rock? And if you caught the blockbuster over the weekend and you're a hard rock or metal fan, there's no doubt you were probably salivating at the idea of having a vehicle like the Doof Warrior.

For those not in the know, the blind mutant traveled the barren wasteland in a truck made out of giant amps and speakers, while rocking a flame-throwing guitar. But would it surprise you to find out that in this day of Hollywood trickery that this was no CGI stunt or green screen illusion?

MTV News spoke with production designer Colin Gibson, who helped create the vehicle and the instrument for the film. Gibson says, "The plan basically was to try to come up with a vehicle, an idea that could be heard over the roar of a couple of hundred amps. And the only way to do that was to build the largest, last Marshall stack at the end of the universe."

Add in a bungee cord for the guitarist and some backing tiger drummers and you had a pretty imposing rock setup for one of the character's background. "We ended up with an 8-wheel drive, an ex-military rocket launching track to give us enough scale, and then turned the reverberators and built them out of old air conditioning duct steel," adds Gibson.

According to the designer, there was some testing before coming up with the exact perfect vehicle and type of instrument. He recalls initially putting too much emphasis on the flame thrower on the guitar and finding the sound needed a little more reverb.

So there you have it. No CGI … just pure Hollywood craftsmanship at its finest. Mad Max: Fury Road is in theaters now.

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