Looks great Hogthrob.
Was taking my 718 in for it's service today into local specialist.
Speaking to the head mechanic and he had another 718 in that a lady had brought in with catastrophic engine failure.
Basically needs a new engine.
17.5K before VAT and labour
Guy said it was a known engine issue but out of warranty and Porsche not offering any help on cost.
Car had been serviced 2 mts previously so not like it was badly maintained.

Interestingly had an old 356 in the workshop that he was shoehorning a VW Beetle engine into.