Hi
I have a set of Recarro seats from a Vauxhall Vectra VXR fitted in my 110, they have the advantages that they can be fully reclined if required, have a heated facility & are very comfortable. They were readily adapted to fit onto the seat box, leaving enough space for a cubby box between the seats. I did have a set of SAAB seats in a previous 110 but found them to be on the wide side thus restricting the seat belt fixings although they were very comfortable. I expect that Recarro seats from any other car would also fit, MX5 for instance.