Here are some of the current vehicle that are used today.
2008 Dodge Charger - Patrol Vehicle
2007 Ford Explorer - K-9 Vehicle 2003 Ford Crown Vic - Patrol Vehicle
2002 Ford Crown Vic - Patrol Vehicle 1996 Jeep Cherokee - Patrol Vehicle
Here are some vehicles that have been used in the past.
1979 Chevy 1981 Ford
1991 Ford 1990 Chevy
1994 Ford Crown Vic 1996(?) Ford Crown Vic