I came across this engine, which is used in the Celera 500L, but is also offered for other applications (I've seen a DHC Beaver and a crop duster):
It's a 6.1 l V12, twin turbo diesel engine. Rated at 550 or 600 shp.
View: https://www.youtube.com/watch?v=y2WZJJ5IzMU
![cropped-PR-RED-A03-EASA-550-PS-engine-768x461.jpg](/proxy.php?image=https%3A%2F%2Fred-aircraft.com%2Fwp-content%2Fuploads%2F2022%2F07%2Fcropped-PR-RED-A03-EASA-550-PS-engine-768x461.jpg&hash=6c7e91dd3e5d97cf443015204135ced3)
It's a 6.1 l V12, twin turbo diesel engine. Rated at 550 or 600 shp.