Familiarize yourself with other local squad cars

How many times have we backed up or assisted a sister agency? Almost every day, right? But how familiar are you with their patrol cars? The local PD ended a pursuit next to my house while I was home and off-duty. After a short foot pursuit, the subject was in custody and sirens were still blaring. I threw on my Sheriff's Office T-shirt for identification, geared up and ran outside to assist.