Cops also go by the natural human instinct which is "Instant Judgement", where somebody judges you by the way you look or the way you compose yourself, EG, if you hop out of the car with a Flat Cap, Slazies (prefered lower clothing garment prefered by all corolla drivers), dirty AM90's and an NWA "Fuck Da Police" t-shirt, then they will most likely have already decided to defect you regardless of your car
I have been pulled over that many times, usually sporting some kind of corporate work apparel of some sort, and you instantly gain respect from the officer in question
best excuse when a cop is tailgating your arse, pull over and get on the phone, and pretend to not notice them, make the first move, they hardly have time to sit there and wait for you to finish speaking to your long lost cousin who has been missing in the mountains of Uraguay,
Secondly, when your speaking to the cop on the side of the road and he or she asks you what you do for a living, just say something they will have respect for, if you say "Im Fukn Unemployed eh" as im sure a particular former forum member has said to the police, then most likely they will judge you,
for example, if you tell the police officer that your a Paramedic or Fire Fighter, then you instantly gain respect i know this is lying but at the end of the day theres a chance they arent going to defect you as your a fellow emergency services member,
This is just from my experience, at the end of the day if you speak to the officer with respect and in a good demeanour then you will go far