Has it got a rs500 splitter and said in the advert that has got a 9" rear diff

If it is I spoke to the guy and was told it was a 2.1 running big power (300bhp IIRC)? If it is I called the guy to go look at it asked him about the diff and got told "it is a 9" diff cos it got big driveshafts" then I asked him about the 2.1 and he said it was because he has overbored the block to 1mm.

I didn't bother seeing the car because he didn't inspire me with confidence that he had any idea of what he was talking about.

It does look nice in the pics if its the same car.