I've had my current car 12 years so it could be a while. I really don't think I'd be very happy with the 125. I was already concerned the 150 might not be quick enough going from my Ibiza 180.
I think I'll take the wk 11 car, change the wheels to 17" and just accept any additional delay the change causes.
Best thing to do TBH.
Its a big purchase that you will own for several years - why compromise!