Hennessey Cadillac CTS-V HPE1000 Twin Turbo Upgrade Home » Hennessey Cadillac CTS-V HPE1000 Twin Turbo Upgrade » Hennessey Cadillac CTS-V HPE1000 Twin Turbo Upgrade Posted on 8 April, 2015 Hennessey Cadillac CTS-V HPE1000 Twin Turbo Upgrade