The Hennessey Venom GT->ke4149 has already promised to be one of the craziest, fastest, and most incredible supercars to have ever of come out of such a small production facility in the U.S. for decades. And it’s only been in production for a few months.

Yet, Hennessey has yet to deliver upon any of its promised performance capabilities, but that hasn’t stopped the firm from already developing its first variant of the car, with the Venom GT Spyder, and with deliveries of the exotic car set to begin soon, the tuning firm recently took the car to the dyno and fortunately, The Smoking Tire was there to capture it all.

The particular unit in question is actually the black car recently ordered by Aerosmith rocker, Steven Tyler and is undergoing its final stages of development before being delivered in the following weeks.

As we’re sure you know, the Venom GT is a true, rear-wheel drive, V8 monster and managed to pump out 839 horsepower and 745lb-ft at the rear wheels running on pump gas and only medium boost. It’s currently unclear which performance package Tyler selected for the car as it’s available either in 725HP, 1000HP, or 1200HP options, but based off the results we’d estimate Tyler selected the 1200 horsepower variant, as race gas and full boost could definitely add an extra 300-odd horsepower.

On top of the incredible exhaust note produced by the car, the following video also shows the Venom GT Spyder shooting some incredibly-impressive flames from its rear, demonstrating that it really is a performance car.

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