Complex sentence: The "San Diegans" also stopped using the "Amfleet" when their Pacific Surfliner cars were delivered, and the Pacific Northwest "Cascades" now use Talgo trainsets.
Split into simpler sentences: The "San Diegans" also stopped using the "Amfleet" when their Pacific Surfliner cars were delivered. The Pacific Northwest "Cascades" now use Talgo trainsets.