Oh dear. Seat's been down this road before with the mk2 Toledo sharing the same dashboard as the mk1 Audi A3. That smacked of cost-cutting back then. To have a "brand new" model celebrated as being based on an old one is spin that would make a politician proud.
It's the scale of the re-cycling that concerns me. What happened to the much-vaunted further development of Seat's unique design language? Poor Luc Donckerwolke can't seem to escape Audi - his freedom at Lamborghini was seriously impinged by the need to utilise Ingolstadt's engineering architecture, and it looks like it's more of the same with the Spanish firm.
Edit: I notice Lamborghini has announced it will be reducing the amount of Audi engineering influence in its cars from now on, while retaining the obvious strengths in terms of reliability and quality. A real shame that Seat is unable to follow the same path.
Still, given the dissatisfaction voiced in many circles about the new Audi A4, the new Seat will certainly give fans of the previous model a way to spend their money.