U.S. Secret Service receives 10 GM vehicles for training and research at the James J. Rowley Training Center in Maryland.The vehicles include two C8 Corvettes, SUVs, and Cadillac sedans like CT4 and CT5 with manual transmissions.The training aims to expose agents to different types of vehicles for overseas trips and various driving scenarios.Instructors believe experience with diverse vehicles will help agents adapt driving techniques based on each vehicle's handling.