Wide body Z3 2.8?

[Dino D]

I have seen a 'wide body' 2.8 for sale:
http://pistonheads.com/sales/2427218.htm

I believe that the facelifted 3.0l had the wider rear as standard but how does a 2.8l end up with it?

[Dino D]

Thanks - those arse shots sum it up perfectly!