Back in the 1950s, several large American corporations brought in Aurelias to study. Ford tested a B24 Spider, and some of their photos of the engine are in the De Virgilio book. It is rumored that GM had a car as well as Alcoa.
Steve Katzman uncovered this detailed review of the B10 engine in Michigan Technic, from 1956. The study is about the use of aluminum in the engine, likely from the B10 sedan that was owned by Bill Stebbins for many years. Note the detailed test info on pg. 3, although its curious they used an Ardea engine drawing, and not the Aurelia!