Complex sentence: The Catera was marketed with the "Caddy that zigs" tagline and launch advertisements with supermodel Cindy Crawford who spoke to an animated duck-like character known as "Ziggy".
Split into simpler sentences: The Catera was marketed with the "Caddy that zigs" tagline. The launch advertisements featured supermodel Cindy Crawford in ads where she spoke to an animated duck-like character known as "Ziggy".