No final news yet, still being investigated, the engine can be manually turned over so it doesn't sound like there is any mechanical damage thankfully. The car hasn't been changed from stock so the air intake is wherever they put it in Swindon (i.e. he's not sure having never needed to find it till now). Could be damp electrics, water in the exhaust etc but no sign of life currently when trying to start it. Sandy52's photograph looks like the previous model from the grill pattern so probably best to be very careful, might be a different engine / intake layout.