In this video, the 2025 Cadillac CT5-V Blackwing undergoes final testing at the Pennzoil Proving Ground, where Hennessey engineers push the upgraded super sedan to its limits. With over 1,000 horsepower under the hood, the H1000 Blackwing showcases blistering acceleration, precise handling, and relentless power on the test track. This is the final step before delivery—where performance meets Pennzoil protection, and every detail is dialed in for maximum reliability and thrill.