And turn them into a Mustang-Firebird hybrid?!
You could always use a loudspeaker system like they do with some modern cars that have smaller engines with turbos. They also pipe masculine muscle car sounds into the cabin, but I doubt you would care about that.
[Edit] Have you considered creating a post on PriusChat like all of the cool kids are doing? You could just announce it to them and link here if you do not feel like updating two threads. Maybe you could announce it in this thread:
https://priuschat.com/threads/good-r....108087/page-2
The thread creator is acting every part a troll while everyone is responding in a nice and friendly manner--except for him replacing his Prius with a v6 Mustang. They made comments like "[I]f it's not a V8 then you bought an overpriced Focus."
Ah. Nevermind. That was closed.