As an aside..
The Alfa Romeo straight eights were two complete fours joined end to end. They did not suffer from the long crank syndrome and proved extremely robust.
Post WW2 they were unbeatable for the first two Grand prix seasons, if they turned up, they won. After they pulled out from racing, Ferrari got their chance.
The 158/159 Alfetta cars were 1.5 litre and made 400hp plus in race trim. They were the prewar models tarted up for the new rules.