Unlike the smaller CT4, the Cadillac CT5 will survive the 2026 model year and will see a second generation with a gasoline engine. Refreshed a year ago, the current model remains competitive in terms of handling and technology. The twin-turbo V6 (335 or 360 horsepower) is more enjoyable than the somewhat sluggish entry-level four-cylinder engine. Meanwhile, the almighty CT5-V Blackwing boasts a 668-horsepower supercharged V8, making it the most powerful manual-transmission car in the industry.