Alex have you been watching too much Top Gear? their maxim seems to be it doesn t matter about the quality of the car just drive it to the max.prang it and hand back to the manufacturer something akin to a kit kat wrapper. I cannot get anywhere near max spl on the super twelve, at relatively ordinary levels pictures and mirrors seem to loose the will to live.So perhaps the Top Gear airfield is the place to go for max spl I am sure you could destroy a caravan quite easily. Seriously I am well chuffed with my super twelve and am happy to use it at levels at which human life can survive. Eddbass