Cadillac is reportedly planning to replace the CT4 and CT5 sedans with electric vehicles.The new sedans will be similar in size to the current models.Cadillac's goal is to have 30 to 35 percent of its sales from battery-powered vehicles by 2025.The rumored sedans will ride on a premium version of GM's BEV3 architecture and adopt styling cues from the Escala concept and the Celestiq.