I honestly think a banshee could beat it (speed). Stock for stock, I stilll think a banshee could beat it. My dad (not sure if it was defective gun) was clocked at 95mph, in the dirt!, with his banshee. Now I beleive the quadzilla was clocked at something 5. (65,75,85)The motor is easily more powerfull than the banshee, I just think the banshee has more topend in which case making it faster. and who knows maybe the banshees were defective in 89'.