I loved the Catera's ride. It is a fast, good handling car. I also liked the special Cadillac features like outside temp and auto headlights, etc. Unfortunately, parts, labor, and maintenance are expensive because the car was made in Germany. I had the car for a year and just couldn't stand fixing it anymore and traded it in for a simple Ford.
The speed, handling, and luxury features.
Well, I think they took care of the improvements with the CTS. But the CTS doesn't have as much room in the interior, especially in the back seat. The cup holders in the Catera are horrible.