You have to taking the mick, right? Seriously?
Surely any kudos you get from 'quoting a low mileage' is cancelled out by the fact the car is... a VW Polo? You could have had a higher mileage Audi A4 2.0T Quattro S-Line for the same money...
People take impressing girls with cars WAY too seriously. Unless the girl is into cars, they judge a car based on how shiney it is and how nice it is inside. Girls generally know nothing about car value or mileage. I often drive cars which are almost new so my opinion is not one of somebody whose judgement is clouded by never having driven anything 'low mileage'. Quite the opposite, infact.
I bet if you drove your car to pick a girl up and then the next day borrowed Jez's 100,000 mile Mercedes Benz S Class she'd think the S Class was considerably more expensive.
Can I ask how you can afford a nearly new current shape Polo GTI whilst at Uni? I know that sounds a bit odd coming from somebody of the same age running a 5 Series but... I think yours was probably a tad more expensive?
Did you have some form of financial assistance? Perhaps if the money spent on a car is not all yours or perhaps its a just a monthly payment it might change your priorities, but when you hand over a big wadge of cash for a car it's nice to get as much car for the money as possible.
I am currently driving a 2008 3 Series Touring with 800 miles on the clock, you'd absolutely love it, and its a nice car but... I cannot help preffering mine in every single way. Well, except for liking the 700 mile tank range.