My car pulls over to the right when I'm driving it. It recently passed an MOT with flying colours so it can't be anything serious. Any ideas? I wonder if it's the tracking or maybe the wheel balance is out.

Thanks very helpful! Better get my road camber sorted out. Where exactly on the car is that situated?

In this country, if it's 'pulling to the right', it isn't like to be the camber of the road...!

Got after market alloys on there?

I had a g/f once who did a m/c maintenance class with me.  She used to get really hacked off with blokes who assumed that women were either stupid, or at best incapable of understanding technical things.   
At a m/c club night in a pub one evening, someone who worked at Elite Motors was showing off his 'technical knowledge' & patronising all the women in the group.  You know the sort of thing, either ignoring the women altogether, or explaining technical matters to them in words of one syllable, or dismissing them with a "You wouldn't understand it love." 
My g/f started asking him some questions about tuning her bike (a 2-stroke CZ trials bike).  He was only too pleased to have an audience to show off to.  She sucked him in beautifully by pretending to be really impressed by his expertise.  Then she got him to explain, in front of everyone, how to adjust the tappets on her engine...   
When he had 'enough rope to hang himself', she expressed surprise that 2-stroke engines like hers have rockers, tappets & valves - because she thought that they just have ports!  He looked like he wished the ground would swallow him up!   

also get someone to check your cv joints and suspension bushes just a tip as thats what was wrong with mine