It's just one of those things, trust me if you are in a brand new Porsche 997 Turbo they won't tailgate you it's just the cars we drive unfortunately. Most people don't know what they are and will think there just another car with a big exhaust as there only hatchback.
I think you get three types of tailgaters:
1) People who just drive like that, their not aggressive, their not trying to wind you up, they just don't know how to drive, have no concept of space and that's what they have done since there driving test. When they crash into the back of someone they will learn but until this time they will always do it.
2) Kids, ones that are young on the road and have something to prove even if they are driving a 0.5L hairdryer. Again most don't know the cars so they feel intimidated and want to keep up, not that your even going fast but they just think shit he is front, he's beating me, better show him what I'm worth when in fact were laughing deep down. Just go slower.
3) Aggressive drivers, sometimes older men who think they can pressurize you into speeding up and making mistakes, this also relates to the newbie on the road with his proud possession as they usually see a car up there bum and get intimidated, it's all related really.
I love the psychology of driving is so interesting, I'm sure I could make a feature length film on it
It's also funny when your driving behind someone, not close at all just pottering, they see a bonnet vent and think oh my god fast car behind me, you can instantly see there driving style changes and they become erratic is so funny. They don't call me grandad for nothing as there is just nothing to prove on the road, time and a place for everything in my eyes.
Just be the bigger man and let them look the fool!
T