Was the rolling stones edition, a 1.4 or a 1.6??
If it's a 1.6 then the tax isn't going to be cheaper, it's going to be the same price pmsl.
If it's a 1.4 then by saying "cheaper tax" proves that you're not going to declare it
And by the way I'm younger than you, I'm 19, and I could insure a VR6 Highline for under £1200.