Did they really test the Alfa Romeo 135 against the BMW 801?

[Hardrada55]

I have read several times now over the years that the Alfa Romeo 135 engine was tested and compared with the BMW 801 and surpassed the 801 in reliability. From where does this information come? Was it done as part of the fighter comparisons commission at Guidonia in February 1943? Does anyone have access any Italian or German documents which show they actually tested the Alfa Romeo 135 against the BMW 801?

 

[Hardrada55]

I guess it's just another myth...

 

[Civettone]

Like so many other stories about Italian aircraft and engines ...