.occasionally, manufacturers loan cars to the police for promotional reasons. this has happened in nsw with the 'smart' cars, and others. so it possible that alfa romeo have loaned a car to nsw police. usually, these cars have the id stickers applied, but no emergency lights or sirens. that is because the car manufactures like to get their cars back! and also, installation of this equipment involves drilling holes in various places, which isnt too pretty!
as for old vehicles in police fleets. in nsw all vehicles are taken out of service out about the 60'000km mark, as is the case for most fleets. this is for two main reasons. one, the cars get pretty worn out and need replacing. two, to maximise resale value. the oldest cars in the NSWP fleet would probably be the camera cars, as they dont clock up many KM's. most of the camera cars are still AU falcons.
beasthouse has made one error so far, he said "The ICV (In Car Video) has been in since early last year. It doesnt hide anything as it's always recording" this isnt correct. the ICV is only activated when the cars blue and red lights are activated. this is because the ICV footage is recorded to a HDD in a computer in the boot of the HWP car. this footage must then by downloaded to a computer back at the station regularly. if the ICV was recording 24/7 that HDD would become full very quickly, and require massive amounts of time for HWP officer to download the file.
as for NSWP having GT's, well i guess their plan worked, they have fooled must of you into believing they have GT's! the simply fact is that the GT's are too expensive and are unecessary. if you want proof that price matters, look at the deals NSWP has made with Ford. all HWP will be Ford soon. why? coz ford offered a cheaper price then Holden.
as for the original purpose of this thread, and many other comments made, if u not breaking the law, u dont have to worry what cars the police use.