24 cylinder motor

This morning I took the Morris Minor to Auto Restorations to get it's Warrant of Fitness. It is parked outside in the background. They have, on display in the foyer, a 24 cylinder motor. I was keen to chat about the history behind this monster. It arrived in a 1920's Hispano Suiza. They had sourced the correct motor for the Hispano and kept this one for display purposes. Historically it apparently came from a French fighter jet. I would not like to pay the fuel bill to run this.