Sounds like a good script for a B‑movie, but if you want the physics, start with the engine’s firing rate and the compression ratio. Those set the fundamental frequency, then the exhaust system shapes the overtones. Add the speed, and the Doppler effect will shift the roar down into the deep bass zone. The drama comes from the resonance chamber acting like a giant violin, so you get that villainous growl. Just remember, the louder it is, the more heat it generates—no one wants a car that melts the steering wheel while it’s menacing.

Yeah, I’d keep the cam timing tight so it doesn’t do a lazy pirouette, and let the ECU tune for that sweet spot between torque and smoothness. If the heat stays under control, the engine can roar without turning into a molten sculpture of chrome. Otherwise we’ll end up in the showroom with a car that looks like a melted statue.

That’s the plan I’m leaning towards, but I’ll need to do a bit of modeling first—engine simulations, heat maps, all that. Once I’ve got the numbers down, I’ll let you know when we’re ready to push the prototype. Stay tuned.