My first car was a 1971 Renault, bought for $800.00 at a garage sale.
The second day I owned it, the cylinder head cracked.
Totally my fault, because it overheated and I refilled the radiator with cold water.
Aluminium engines don't like that very much...
A local repair shop said it would be nearly impossible to find a head for it, so it was off to the boneyard.
An expensive lesson learned...