Alright so when I woke up, about 45 mins or so later, I just remembered my dream and here's how it went:

While I was driving around in my car, my friend noticed the fact that my car sounded like a jet engine... I call BS and laugh at him, then he tries to prove me wrong so he gets into my car and revs the car a bit and everytime he let off the gas, there was an obvious whistle that came from the engine bay.

Sadly, that's all I can remember