Ha ha!
Sounds like a real engine, because it is the sound of a real engine...! At the local club a guy had a sound card fitted to his battery-electric model of a Deltic... When he turned the sound up, when pulling out of the station, it was really impressive! Made a few people jump!
He also had a model of a large US tractor and trailer unit... The big diesel on that was also "real" loud!
On the pond, I had my steam tugboat running and one guy asked me what kit I was using to make the smoke stack fumes look so real. He hadn't heard of a steam engine, just oil burners, jos-sticks, and proprietary smoke makers, that didn't chuff like my boiler and steam engine.... That was real!
K2
K2