Just beacause you are jealous of the car the bloke drivin along is in, doesn't mean you have the right to then treat the driver like DIRT, and do everything in your power to find at least ONE fault no matter how small, and proceeding to BOLLOCK the driver over it. If you don't have a nice car, thats your problem, but just because mine is nice, doesn't give you the right to be a prick.
Edit....
Not all coppers are like this, there are exceptions. But the ones I've had experiance with sadly are the above