FWIW, and not to put too fine a point on it, that is my Allison C18B in Eddy's Teslamino.
And don't get too excited, it's not driving anything - just sitting back there for demo purposes.
Still pretty cool.
FWIW #2 that C18B puts out 320HP, and is the same engine used in Jay Leno's UH-GLEE jet bike.
I've got two, much prettier, bikes powered by C20Bs (420HP and flipped 180 degrees so exhaust goes down).
Lotsa fun either way.
And yes, both bikes handle my (some would say childish) need to be the center of attention wherever I show up.