The second you drive your new car away from the dealer it looses 20% value...
That price sounds about right for a 6 month old car from a main dealer, that is an "old model", with 7k on the clock - compared to the list price.
Discounted price, you could probably buy a brand new Mk7.5 R for that sort of money...
The other thing is that a main dealer price on secondhand cars, especially nearly new ones, is always higher than you'd expect to pay. Their margins are somewhat excessive!