For what it's worth the 397bhp figure was done at the Custom & Performance show in Limerick about 2 years ago on the WCP Dyno.

The 550bhp was a claim by Predator. Not exactly reliable information to say the least. It's either massive twins or single turbo power for those figures as hybrids won't hit that. If you were looking for big power down the line.

A uk spec generally (which is what it is) go for more than the equivalent of the jap spec models.

Assuming still in good condition engine with turbo's about 2500 euro, 6 speed boxes are making 2500 to 3000 sterling on a regular basis in the uk.

Wheels I'd assume 1500 at least, headlights are 760 off Toyota new, you'd get 300 euro all day long for the facelift headlights which he has if the car was broken. Leather seats about 250-300 . All things like diffs etc add up to so it's definitely "worth" it in terms of parts alone that are very easy to sell on the uk mkiv supra owners club.

To be honest I think the car would make a nice few quid profit if sold in the uk if picked up for 5500-6000.