Jag S-Type V8 'R' - will it ruin me?

[littleredrooster]

Got the hots for one of these. Seems a cheap(ish) way of getting 400bhp and lots of toys with the usual Jaguar attributes of decent interior and passable handling.

Thing is - will it destroy my bank account? What is the real-world mpg (I'm guessing 22-25 as I live in the sticks and don't commute in traffic).
Any serious reliability problems or quirks that the forums have missed? Does the supercharger stand high-ish mileages?

Any views?

[lestershaw]

Have you looked on the jaguar forum, I did before I bought my xjr.