The Polo GTI looks really nice, especially with the xenons.
How is it you didn't go for a new new Polo GTI?
What was the reliability like on your twin charged engine?
I bet it shifted when remapped!
Many many moons ago I had a 1.8T Polo GTI not too long after they came out in about 2007. Mine was an ex-VW press fleet car i think as I bought it a few months old and it had a similar reg to the cars in the magazine road tests. It had a high spec and depreciated very little in my ownership.
I ran VW Evolo 17" alloys and treated it to a dash of REVO.
The thing was hilarious once remapped but the driving position hurt my back for some reason so I sold it after a year and a bit. Old age must've been creeping in even back then!

Anyway, nice silver mk6 GTI, looks a good base for a project.
My first mk6 was silver and after trying several (about seven!) different sets of wheels on it I can safely say that anthracite grey looked the best.
The final set I had on it when I moved it on were grey VW Racing spec Team Dynamics Pro Race 1.2's.
They looked really good against the silver.
VW Rotary 18s would look good but are a bit pricey bought new.
A set of grey BBS CKs would also look nice...