Hennessey Venom GT Spyder Gets A Power Boost, Tops Out At A Blistering 280 MPH With 1,451 Horsepower Hennessey will be displaying its 2016 Venom GT at the SEMA Show in Las Vegas. The new Venom GT has promised to deliver 1,451 ponies that will allow it to hit 280 mph, which beats the record that was set last year. by Fritz Gleyo