Do the seat rails differ on the later spec cars. Had a quick look at my new interior today & the drivers rail where they bolt to the car at the front are a slightly different angle so I'm going to swap the rails with a spare seat.

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If you look at the sides it looks bent. It's probably been dropped or something and bent flat

I thought that but then I noticed a few more differences so wasn't sure. Plus it'd have to be a big drop to bend them both.

I'm not sure mate. Only speculating.

To the best of my knowledge, the Z32 floorpan didn't change over its production lifespan. So 1989 seats should bolt straight into a 2000 car (for example).

Think the brackets have bent. I've changed over the rails so the seat fits perfectly now.