 I was driving an '08 Crown Vic was happy when I was given a new car. To be specific this car was driven 5 days a week about 5 hours in the city as an unmarked narcotics vehicle. I very rarely "dogged" this vehicle. It first gave me problems at 6,000 miles. It started to slip gears and make grinding noises. I got it towed to the city fleet lot and they took it to the Ford dealership. They replaced a module and I got it back after it was down for 2 weeks. The second time (15,000 miles) was when I was driving in an area of town that is not "officer friendly". It completely stalled in traffic and was towed to the dealership. It took 2 months to diagnose the problem and was fixed after 3 months. The third time was the icing on the cake. (40,000 miles) A shots call fire came out over the radio and PD said there was a victim. I was pretty close so I decided to pull and check either units that were dispatched. I hit the lights and the siren and started to head that way. When I came to a busy intersection (2highways) I cleared half of the intersection then the car stalled. I was left in the middle of the intersection with heave traffic coming right towards me. After this incident I told my supervisors that I would not be driving this vehicle and that they can put me in the oldest vehicle in the fleet but I am not driving that POS car. The city has auctioned it of and I feel sorry for whoever bought it. I hope they will be safe.