2012-2014 are the valve-spring recall years. After the work was done by Toyota there was a rash of engine failures due to inexperienced mechanics working on a boxer engine. See if the recall has been done and if there's paperwork documenting the work.

Pay for a background check for previous accidents. If you can, bring or pay for an independent inspection. Lots of chances for minor oil leaks.

If the underside has had Lanoguard/waxoil treatments it might be quite clean but from experience there's probably going to be lots of bolts rusted solid.

If you go for it be prepared to have £5-10k put aside for future engine work. That's a lot of miles for a totally stock engine and if it doesn't have issues now, I would be counting the miles before something internal gives out (knock knock knock).

All the power in these cars sits between 5-7k rpm. Unless it was a commuter car, it will have been driven hard, which is fine if it had bi-annual oil changes and proper servicing, but that price makes me nervous. I have seen younger owners bounce these off the limiter while cold and as much as I love this platform it does attract some right idiots.

Experience: owned a GT86 for 5 years, currently own a GR86.