As the 6J
Ibiza shares its platform with the 6r / 6c VW Polo and mk1 Audi A1, then there’s a good chance they all share the same seat rails. If so, then it ought to be possible to swap the seats between 5 door models of
Ibiza, Polo and A1 without the need for any modifications. At the link below there‘s a Polo over on uk-polos.net forum where the owner has fitted Audi A1 seats.
Things to consider / bear in mind;
- electrical connectors and wiring for seat side airbags might be different, as might seat heating if your seats and any replacement seats has this.
- fitting different seats to the factory originals is a modification for insurance purposes, so you’d need to inform your insurance company who may increase your premium.
- the A1 rear seats at the link above will only accommodate two passengers, so that could be an issue if you ever need to carry three passengers on the rear seat.