Surely these seats won't fit?

[Joelove]

Hi all, looking at seats to fit the roadster and i can see this style seems popular: http://www.ebay.co.uk/itm/GRP-Black-...em43b26abd24:(

But just a bit concerned that they won't fit as they are 445mm wide but the space in the roadster is only 450mm wide and that's before you fit 2mm or so plate on the tranny tunnel and not to mention seat belts?