I did have one little mishap with a 318i but that was my own fault.
This is a story I have told a few times on here.
Parked where I should not have been parked at Amsterdam airport waiting for a mate of mine to arrive.
Saw the temp go up but did not turn the engine off as I did not want to have to check under the bonnet, if I was spotted, I would incur a heavy fine.
Parked in front of me was a Bentley, I saw the boot open (done by remote by the owner a few feet away)
He was bent over with his backside inches from my bonnet packing his bags in the boot.
My expansion tank blew up, when the steam cleared, the owner was laying on top of his bags in his boot (big boots those things have)
I had to move, so drove about 5 km, it is all one way roads, to a petrol station and parked up.
Next day, new radiator and all was good, bulletproof these engines....
and believe it or not this was the norm, take for instance the yellow one from Bridgewater that had at least the front arms welded but the sills were badly blistered and on slightly bursting one it widdled rusty water for the whole time we were there..... that was another "pristine example" and we gave ourselves a large budget and i'm not over fussy as I needed a project car but what people class as "out of the box" was terrible and in some cases dangerous 
