Whats it worth px?

[Jay-ZS+]

Thinking of changing car, planning on going to test drive a few tomorrow and having never bought a new/6 month old car just wondered what I could expect to get for mine if px'd? Guess Dan would probably be the most experienced in this area! lol

54 plate 180 125,000 on the clock.

Or on the off chance anyone is interested in it the full spec is
Piper Cams and Pulleys
Lightweight Flywheel
Torsen Type B limited slip diff
Brembo 4 pot calipers
Decat
Piper Cat back
Open cone induction
HID's
Rainbow component front speakers
Pioneer HU