This brings up a good point. What does a officer expect from a car and need it to do? Most of us joes have no idea so it would help us to understand more.
With myself I expect (or want) a car that has better than average performance, handling and stopping ability. I want something that will run 100+ MPH for a relatively great distance without over heating or breaking down. I want brakes that can take multiple full bore stops and not fade when hot, tires that I am confident will not blow out the side walls at 100 MPH after a 10 mile run. I also like to have plenty of room to work inside the car as well as plenty of room to be able to bring my stuff with me...all of my stuff. And I also would like something that never needs to go into dealer level service from the time it gets issued to me to the time I turn it in for the last time.
BTW I have that now. 2011 Caprice with a six speed automatic, 6.0 liter LS V8 engine, a very strong and tight limited slip rear end, traction control/stable track, performance or pursuit mode switch and the list goes on. Almost the perfect cop car. It does everything very well.