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Using my Intercomp race scales, I measured the little red Wrangler at 3,629lbs. With my 160lb frame in the driver's seat, I plugged the resulting 3,789lb total into the horsepower formulas in the sidebar, Math Class. Even though the G-Tech will measure horsepower if you enter the vehicle weight, I wanted to use the old-school hand-calculated method to check a few different variables. Do the results surprise you?