Off Topic: I've been visiting this forum from time to time, since i'm looking into buying a Lexus IS-F...
I have owned 2 Subaru STI's and an EVO IX...and i am currently driving a Vauxhall Insignia VXR...nice family sedan: does everything in the driving departement reasonably well (it's too heavy!), but rubbish reliability and very expensive maintenance kinda trouble the experience...so, it's back to japanese reliability and customer service for me!!!
On topic:
Count yourself Lucky...official Lexus price: only 850£...
The vauxhall Insignia VXR...cost for front brake disks and pads (roughly the same size brembo's as the is-f)...(hold your breath!) a slightly whopping 1850£!!!
So consider the IS-F to be cheap!